At least one smartphone manufacturer is doing something about this. This week, Research In Motion (RIMM) introduced the BlackBerry Pearl Flip 8220, available for $150 with a two-year contract from T-Mobile (DT). This device is the first BlackBerry in a flip phone, or clamshell, form. Like RIM’s mainstream, candy-bar-shaped BlackBerry Pearl, the Flip uses a SureType keyboard, which has condensed keys and relies on predictive text software.

The Pearl Flip uses a SureType keyboard, which takes up less space.

After using the Pearl Flip for a week, I’ve found it to be a stylish messaging device that works well as a comfortable phone. I really liked its exterior screen, which is designed to show previews of incoming messages, saving people the trouble of flipping open the device. It runs on T-Mobile’s slow EDGE network, but has built-in Wi-Fi and the ability to automatically connect to saved, nearby wireless networks.

First-time smartphone buyers will likely find the Pearl Flip to be a good fit. When it flips open, a special hinge drops the top half of the device slightly behind the bottom half, and a handy trackball makes navigation easy. The Flip’s Web browser enables streaming videos that look sharp on its interior screen, and a microSD card slot supports up to 16 gigabytes of memory.

But current BlackBerry owners who want to switch to a device with a more comfortable phone may have trouble adjusting to the Pearl Flip’s SureType keyboard — especially if they’re used to a device with a full QWERTY keyboard. Though the Pearl Flip’s keyboard is a generous size and its keys are flat and easy to press, its SureType design assigns two letters to almost every key, which can be frustrating to use when predictive text guesses a different word than that which is intended.

The Pearl Flip 8220 is RIM’s first flip phone BlackBerry.

The Pearl Flip supports T-Mobile’s Unlimited HotSpot Calling, a service that doesn’t use any minutes on phone calls begun in Wi-Fi zones. Even if a user leaves the Wi-Fi zone in which he or she started a phone conversation, the call passes over to the T-Mobile cellular network without dropping out. This service costs $10 monthly in addition to regular service charges.

When I made calls on the Pearl Flip, friends on the other line noted how crisp and clear our connection sounded. And best of all, the Pearl Flip’s long, clamshell profile was easy to hold and fit snugly and comfortably between my ear and shoulder when I needed two hands to carry things.

BlackBerry’s signature red light blinks in this device’s top corner to indicate new messages. The 1.6-inch exterior screen displays about 25 words (give or take) from newly received emails, instant messages, SMS, MMS, calendar notifications and task reminders. If a message is received from a contact to whom a photo is assigned, that photo also shows up on the external screen to identify the sender. Side buttons let users scroll up or down through these previews.

This display is designed so that the same message being previewed externally will appear on the internal screen as soon as the Pearl Flip is opened. This makes sense because people will want to reply to some emails or read their entire contents after seeing a short preview. But my device didn’t do this at first; instead, the internal screen seemed completely unrelated to the external screen. I finally got this feature to work after my external screen froze and I rebooted the Pearl Flip. RIM said it hadn’t seen this behavior before, and wasn’t sure what had caused it.

The interior screen measures 2.4 inches diagonally and has a resolution of 240×320 pixels, which is a larger, higher resolution screen than most basic cellphones. While using Wi-Fi, I pulled up YouTube.com and watched a video. It played without skipping or stopping while streaming directly from the Web. A higher-resolution video, which was saved to my device, automatically played in horizontal mode so as to take up the entire screen; YouTube videos play vertically, without using the full screen.

Up to 10 email accounts can be set up on the Pearl Flip; I had no problems using Hotmail, .Mac and Gmail accounts. I also signed into AOL Instant Messenger and Google Talk on the Pearl Flip. Along with these messaging programs, ICQ, Windows Live Messenger, Yahoo Messenger and BlackBerry Messenger also come pre-installed and ready to use.

If my Pearl Flip was closed and I remained signed into an instant-messaging client, notifications appeared on the external screen telling me who was sending an IM and what it said. When I opened the device, I was automatically directed to the screen where I could reply to the instant message.

I tested the T-Mobile Unlimited HotSpot Calling feature by starting calls using a Wi-Fi network and then leaving the network’s range. The calls remained steady without dropping or fading, and if I were a paying customer, I wouldn’t have been charged minutes for those calls. Calls that start out of Wi-Fi zones and end in Wi-Fi zones do deduct minutes. My Pearl Flip had no trouble automatically moving from the cellular network to a Wi-Fi network.

All T-Mobile Wi-Fi hotspots, such as at airports or in Starbucks (SBUX), automatically work with the Pearl Flip if you’re registered for the $10 monthly Unlimited Hotspot Calling.

If you’re considering taking the plunge into the always-connected world of smartphones, or if you want a more comfortable phone in your smartphone and don’t mind the quirks of SureType, the Pearl Flip 8220 may be the BlackBerry for you.

– Edited by Walter S. Mossberg

• Email us at mossbergsolution@wsj.com. Find this and other columns and videos online free at the All Things Digital Web site: http://walt.allthingsd.com

One welcome sign is an effort by companies trying to improve Microsoft Corp.’s (MSFT) Windows Mobile operating system, which has a reputation for confusing navigation and hasn’t had a major update recently. Kinoma Inc., for example, recently released an application called Kinoma Play that runs on Windows Mobile devices and gives users a markedly better way of handling photos, videos, music and Web browsing.

The HTC Touch Diamond, due out this month from Sprint, tries to hide Windows Mobile software.

This week, I tried yet another software program that is designed to run on top of Windows Mobile software. But this time, the software is at the heart of a device designed by the same company: HTC Inc. I tested the HTC Touch Diamond, due out from Sprint (S) sometime this month for $250 (after a $100 mail-in rebate) with a two-year contract.

Taiwan-based HTC started out in 1998 as a maker and designer of mobile devices for other companies. A year ago, HTC launched the first device under its own name in the U.S., and now, Sprint, AT&T (T) and T-Mobile (DT) sell HTC-branded devices. The Diamond incorporates HTC software, as well as software from Sprint, MobiTV, TeleNav and others. But it isn’t a stretch to imagine HTC trying to create a fully end-to-end model (hardware and all software) in the future.

The Diamond has a touch screen, but it’s smaller than Apple’s (AAPL) iPhone — 2.8 versus 3.5 inches. This screen lacks the iPhone’s multitouch functionality, and its smaller size robs space used for touch gestures like flicking or scrolling with a finger. Yet like the iPhone, it relies solely on an on-screen keyboard for all text entries. Even with the Diamond’s stylus, the keyboard felt small and cramped. Using just your fingertips was next to impossible.

After using the Diamond for a week, I can say that despite its handsome TouchFLO 3D software and animated icons like photos that flip from one to the next with a flick of finger, this device failed to disguise the frustrating interface of Windows Mobile often enough for my taste.

It reminded me of the brown paper bag book covers my Dad helped me make for schoolbooks when I was a kid: They looked great on the outside, felt sturdy and clean and created a blank canvas for homemade doodles that were often more interesting to me than the books they covered. But my book covers couldn’t change what was underneath; pages of frustrating algebra were just a flip away.

HTC’s sleek software tries to hide Windows Mobile, but menus from the Microsoft operating system are constantly popping up. HTC’s email program, for example, is represented by an animated envelope icon that, when selected, cleverly flips twice before sliding an email message half-way out and giving you a three-line peek at what’s inside. If only reading and responding to email were half as entertaining. Selecting the animated envelope opens the old, cumbersome Windows Mobile email program.

Also, the touch capabilities of the Diamond’s screen didn’t work as well as they should. Finger flicks that should have scrolled through lists instead seemed to select individual items in a list, as if they were sticky.

The Diamond isn’t all bad, of course. Plenty of people will like its smaller size because the iPhone and RIM’s (RIM) BlackBerrys seem too large and brick-like to hold up to an ear for phone calls. Next to my BlackBerry Curve, the Diamond was of comparable thickness but measured smaller in width and length.

Despite its size, the Diamond is packed with features. It has a 3.2-megapixel camera with autofocus that doubles as a camcorder, and comes with four gigabytes of internal memory and a removable battery. I taped short videos — something the iPhone can’t do — and found the sound and video footage to be adequate.

HTC touts the Diamond’s browser, which is based on the Opera browsing engine but is designed for HTC. It opens Web pages in views that fit the screen and text is automatically resized as users zoom in or out, though this resizing was sometimes slow.

Unlike the iPhone, Web sites that are opened on the Diamond’s browser don’t resemble the actual site as you would see it on your computer. I opened CNN.com (TWX) and WSJ.com (NWS), two sites that are packed with text and graphics on a regular browser. On the Diamond, they quickly were rendered in list format with mostly text-only. I easily touched the screen to follow links to full stories.

Like the iPhone, the Diamond has an accelerometer, though it’s called the “G-Sensor.” When it worked, this feature flipped the screen to match the horizontal or vertical direction in which the device was being held. Photos flipped instantly, but the Diamond’s G-Sensor took almost three full seconds to respond as I flipped from vertical to horizontal while using the browser. And some Web sites didn’t respond to the G-Sensor flips at all.

A special YouTube application developed by HTC was easy to find on the device and worked quickly. My videos were organized into categories for All, History, Bookmarks and Search, though this last category required using the finger-fumbling keyboard. In one step, I emailed a link from a YouTube video to a friend using the device, with a still shot from the video included in the message.

Overall navigation on the Diamond isn’t as intuitive as on the iPhone or iPod Touch, nor was it as easy as on a touch-screen Windows Mobile device running the Kinoma Play application. The iPhone and iPod Touch use quick double-taps on touch screens to zoom in or out, and multitouch capabilities resize images with pinching gestures; Kinoma Play uses a long touch to zoom in. The Diamond used double tapping on some screens, but not enough for me to grow comfortably reliant on it. A small, circular pad beneath the device’s touch screen provided a more dependable method for zooming in or out of screens: tracing the perimeter of this circle clockwise with a finger zoomed in; counterclockwise zoomed out.

The HTC’s software animation is put to good use on its Weather screen. Here, animated illustrations of each day’s weather appear on the screen: suns spin, clouds move in, rain appears to fall. Even moons appear on the device at night to accurately reflect the weather in a city at a specific time.

It is exciting to think about other mobile-phone companies giving better software a real try, especially those that attempt to improve Windows Mobile. But HTC’s Touch Diamond doesn’t hide the outdated operating system well enough or often enough for a user to want to buy a whole new mobile device.

Edited by Walter S. Mossberg

• Email us at mossbergsolution@wsj.com. Find this and other columns and videos online free at the All Things Digital Web site: http://walt.allthingsd.com

This week, I gathered up some useful shortcuts that come built into most of the BlackBerrys, even older models, made by Research In Motion Ltd. but not many owners actually use or know about them. Ironically, most of these shortcuts are conducted using a BlackBerry feature that the iPhone lacks: its physical keyboard. (The iPhone uses a virtual keyboard that appears on-screen only when needed.)

Some useful shortcuts are built into most BlackBerrys, even older models, though not many owners actually use or know about them. Most of these shortcuts are conducted using a BlackBerry feature that the iPhone lacks: its physical keyboard.

Some of these shortcuts are seemingly obvious, like number or capitalization locks, but others are more obscure, like codes that can be entered to display the BlackBerry’s precise signal strength. Some shortcuts are performed with a single keystroke; others work in conjunction with a trackwheel or trackball, depending on your BlackBerry model, and still others work when two keys are pressed simultaneously. BlackBerrys with condensed keyboards that use auto-correcting SureType may require extra or different keystrokes.

Navigation Simplified

A series of keystrokes work in various BlackBerry applications to make navigation much faster. Pressing the Space bar works like Page Down on a computer keyboard, moving down one screen per press. Holding Shift while pressing the Space bar moves in the opposite direction, like the Page Up key. To quickly move to the very top or bottom of a page, press “T” or “B,” respectively. Another way to page down or up through lists is to hold the ALT key while scrolling with the trackwheel.

Users can toggle between the BlackBerry’s running applications without the extra step of navigating back to the Home screen. To do this, press ALT and the Escape key, then release Escape and use the trackwheel to scroll through a display of icons that represent running programs until you reach the desired program, then release the ALT key to select that program.

Messaging Magic

Shortcuts in BlackBerry messaging can be a real boon when you’re trying to get work done quickly. While looking at a list of emails, hit “C” to immediately start composing a new email. When a specific email is highlighted, pressing “R” will reply to that message; “L” will reply to all and “F” will forward it. Hitting “J” while an email is highlighted will jump directly to the oldest message in that email chain.

A list of emails can be more neatly organized from the message screen by holding the ALT key and pressing a letter. “I” will alter the list to show only incoming emails, “O” will show just those emails that were sent. “P” shows a phone log, including dates and times, and “s” displays all SMS messages made or received on the BlackBerry.

In the body of a message, pressing the Space bar twice inserts a period and capitalizes the next word. When the left Shift key and ALT are pressed together, the keyboard’s number lock is on; the right Shift key and ALT work as the caps lock. Holding any letter down will capitalize it, saving users from pressing another key to do so. To type a letter with an accent, hold the letter key down while scrolling up or down with the trackwheel until you find the correctly accented letter.

Type Less, Say More

While composing emails, a series of AutoText codes can be typed in the email body to automatically display certain phrases or information. Typing “mynumber” and a space in the text of an email will automatically display your BlackBerry’s phone number. Similarly, when “LD” is entered the local date is displayed, and when “LT” is typed the local time appears.

If your email inbox is full and you can’t send emails, find out the PIN of your recipient’s BlackBerry and use it to message the person directly. (To find your own PIN, type “mypin” and a space into the body of an email. This code can be used to send PIN messages from one device to another without using the device’s usual email system.)

Geeky Codes

If you’re just dying to know some techie details about your BlackBerry, the “Help Me!” screen will be right up your alley. To view the “Help Me!” screen, press ALT, Shift and “H” simultaneously. This displays data that won’t matter much to the average person, such as the device’s vendor ID, platform and free file space. But it also shows the exact percentage of remaining battery power on the BlackBerry, which could be helpful if you aren’t sure how to interpret the imprecise battery indicator bars at the top of the home screen.

Another way to geek up your BlackBerry is to change its signal strength indicator from bars to numbers that tell how many decibels per milliwatt the device is transmitting. To do this, go to the Home screen and hold down the ALT button while typing “NMLL.” My BlackBerry displayed a minus 75 when I made this change. Strengths of minus 50 to minus 90 are said to be good, while anything higher, like minus 100, isn’t. Though this numerical indicator won’t likely be of any practical use, you could use it to turn to a friend and compare reception during an excruciatingly boring meeting.

One way to impress a technophile on a date is by pulling up a BlackBerry’s Event Log. To do this, go to the Home screen and hold down ALT while typing “LGLG.” This retrieves a long list of numerous confusing codes representing the functions that were performed on your device. The Menu screen in the Event Log gives users the option to clear this log, freeing up some BlackBerry memory, while an Options screen lets people set the log up to record only certain kinds of activities.

Finally, to reboot your BlackBerry without removing its plastic back and taking out the battery, press ALT, Right Shift and Delete simultaneously. More codes can be found in the blogosphere or in a special section of RIM’s Web site: http://na.blackberry.com/eng/support/blackberry101/tips/. Adopting just one of these shortcuts can significantly change the way you use your BlackBerry.

Edited by Walter S. Mossberg

Write to Katherine Boehret at mossbergsolution@wsj.com