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The bottom line: MetroPCS offers a basic phone selection, but its service plans come with few restrictions. Read review

The bottom line: With its excellent design, user interface improvements, and admirable feature set, the Motorola Cliq gives a big boost to the Android operating system. We had some performance quibbles with the device, and the MotoBlur interface can be a bit much, but the phone has a lot to like. Read review

Specs: WCDMA (UMTS) / GSM 850/900/1800/1900, 360 min, With digital camera / digital player, 5.7 oz

The bottom line: The Samsung Alias 2 is an inventive update to Samsung's previous messaging phone. Provided you can afford it, and learn how to use it, it's a powerful messaging device with reliable performance. Read review

Specs: CDMA2000 1X 1900/800, Up to 300 min, With digital camera / digital player, 4.3 oz

The bottom line: The HTC Imagio is rich with both multimedia and business features, making it a great all-in-one smartphone for the Verizon globetrotter. Read review

Specs: WCDMA (UMTS) / GSM 850/900/1800/1900 / CDMA2000 1X 1900/800, With digital camera, 6.5 oz

The bottom line: The HTC Pure offers AT&T customers an affordable touch-screen smartphone that showcases a more intuitive Windows Mobile operating system and strikes a nice balance between work and play. That said, those looking for a handset that excels in multimedia and Web browsing should stick with the iPhone. Read review

Specs: WCDMA (UMTS) / GSM 850/900/1800/1900, Up to 336 min (GSM), Up to 300 min (WCDMA), With digital camera / digital player, 4.1 oz

The bottom line: Despite the lack of Wi-Fi, the RIM BlackBerry Tour 9630 is a feature-rich and well-performing smartphone that will serve Sprint's globe-trotting customers well. Read review

Specs: WCDMA (UMTS) / GSM 850/900/1800/1900 / CDMA2000 1X 1900/800, 300 min, With digital camera / digital player, 4.6 oz

The bottom line: Though hefty in size and price, the HTC Touch Pro2 offers T-Mobile's business customers a powerful smartphone with robust messaging, voice capabilities, and a slick user interface. Read review

Specs: WCDMA (UMTS) / GSM 850/900/1800/1900, Up to 510 min, 6.3 oz

The bottom line: U.S. Cellular is a regional carrier covering much of the Midwest. Read review

The bottom line: The Nokia Surge offers AT&T's younger customers an affordable, feature-rich smartphone, but it has a number of design and interface issues. Read review

Specs: WCDMA (UMTS) / GSM 850/900/1800/1900, 240 min, 4.4 oz

The bottom line: The Altec Lansing BackBeat 906 is a ruggedly-constructed, thoughtfully conceived, and sonically impressive stereo Bluetooth headset, but the one-size-fits-all design may disappoint some users. Read review

Specs: Headphones, Behind-the-neck, 12 oz, Stereo, Bass Boost