Two of the latest Microsoft-based, would-be Treo killers boast larger screens and roomier slide-out keyboards, but neither of the devices offers the form and functionality of the Treo 650.

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In a test of two new smartphones, Motorola’s Q wins points for its low price tag and striking design. But Palm’s improved Treo, with greater speed and other enhancements, is still the best bet for serious users of mobile email, Web and Microsoft’s Office.

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BlackBerry users are a stubborn bunch, almost as fond of their device’s familiar features — scroll wheel, full minikeyboard and big screen — as they are of constantly checking email. So when I directed all of my work and personal email from my current BlackBerry to the newest BlackBerry 8800 for this column’s testing, I [...]

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A look at alternative keyboard options: two sets that operate wirelessly using Bluetooth, and a stand-alone wired ergonomic keyboard made for touch typists.

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The iPhone is a beautiful and breakthrough handheld computer, Walt Mossberg and Katherine Boehret say. A major drawback: the network it uses. Video

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Apple’s new iMac includes a radical-looking keyboard, but the bigger change is the major update to its iLife software suite. Katherine Boehret tests the new programs with a particularly close look at iPhoto and iMovie.

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Katherine Boehret tests the new HP Photosmart A826 Home Photo Center, a product that combines functions of a photo printer and a digital picture frame, and finds a good idea in need of improvement.

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A new, free service launching in nine metropolitan areas sends travel directions to your cellphone via text message after using voice-recognition technology to determine your current location and where you’d like to go.

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Palm’s Centro is geared toward younger people who traditionally only carry a cellphone. Palm hopes the $100 device, a miniature version of the more expensive Palm Treo, will give it a much needed shot in the arm.

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Motorola’s ROKR E8 is a head-turning phone with many built-in advances that give it a smarter interface than basic cellphones. Its standout feature is its keyboard, which dynamically changes to accommodate whatever you’re doing.

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Here are some useful shortcuts that come built into most of the BlackBerrys, even older models, made by RIM but not many owners actually use or know about them.

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It’s exciting to think about iPhone competitors giving better software a real try. But HTC’s Touch Diamond doesn’t hide the outdated Windows Mobile well enough or often enough for a user to want to buy a whole new device.

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Are you a member of the “I-check-my-email-constantly-even-when-I-know-no-one-has-emailed-me” club? If so, your mobile email device is never far and you’ve found yourself wondering how other people can leave unread emails sitting in their inboxes all day.

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Today, people interested in seeing the first Google-branded consumer-hardware product will get to satisfy their curiosity as the company, joining with T-Mobile, unveils its $179 G1 handheld computer. This touch-screen device will compete with Apple’s iPhone, and it includes a key feature missing in the iPhone: a physical keyboard.

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Change is a familiar concept in the mobile-phone industry. Most recently, Apple and Google introduced mobile devices with two vital innovations: They run on fast 3G networks and use touch screens. Yesterday Research in Motion, maker of the BlackBerry, brought out a device that goes halfway: the BlackBerry Bold, which runs on AT&T’s 3G network, but doesn’t have a touch screen.

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