All Smartphones

The Bottom Line: Though the Velocity 103 offers a lot in the features department, the Windows Mobile smartphone is going to have a tough time competing in the space because of its unintuitive interface, performance issues, and high price tag.

Specs: GSM 850/900/1800/1900 / UMTS 850/1900/2100, Microsoft Windows Mobile 6.1 Professional, Up to 240 min, 128 MB

The Bottom Line: While there are some design quirks, and we're still waiting for a U.S. release, the Samsung Omnia promises to be a solid alternative to the Apple iPhone.

Specs: Microsoft Windows Mobile 6.1 Professional

The Bottom Line: The Motorola Q Global brings an updated look and the latest Windows Mobile operating system to the messaging-centric smartphone.

Specs: GSM 850/900/1800/1900 / UMTS 850/1900, Microsoft Windows Mobile 6.1 Professional, Up to 540 min, 96 MB

The Bottom Line: The HTC Touch Diamond for Sprint brings some nice additions and improvements over the unlocked GSM version--most notably to performance. It's best suited for first-time smartphone buyers or light users, while business customers should wait for the Touch Pro.

Specs: Microsoft Windows Mobile 6.1, Up to 252 min

The Bottom Line: While lacking some advanced capabilities of the Sprint and Verizon Wireless versions, the RIM BlackBerry Curve 8330 for U.S. Cellular is still a good choice for customers in need of a solid messaging smartphone.

Specs: CDMA2000 1X 800/1900, BlackBerry Handheld Software, Up to 260 min, 64 MB

The Bottom Line: The Palm Treo Pro offers significant improvements in the design and features department, but the smartphone doesn't offer anything revolutionary and costs more than its competitors, which will make it a hard sell.

Specs: GSM 850/900/1800/1900 / UMTS 850/1900/2100, Microsoft Windows Mobile 6.1 Professional, Up to 300 min, 128 MB

The Bottom Line: With the new features, extra level of customization, and affordable price tag, the T-Mobile Sidekick is a good choice for the carrier's younger customers looking for an all-in-one communication device.

The Bottom Line: While the integrated GPS and TomTom navigation software makes the HTC Touch Cruise very enticing, there are some limitations, not to mention a high price tag that turned us off to the smartphone.

Specs: GSM 850/900/1800/1900 / UMTS 850/1900/2100, Microsoft Windows Mobile 6.0 Professional, Up to 420 min, 128 MB

The Bottom Line: With the addition of Wi-Fi and GPS, the Palm Treo 800w finally catches up to some of its competition and even offers a better design. The Windows Mobile smartphone will be a good fit for Sprint's business customers, if the battery life can keep up.

Specs: Microsoft Windows Mobile 6.1 Professional, Up to 270 min

The Bottom Line: The iPhone 3G delivers on its promises by adding critical features and sharper call quality. The iTunes App Store is pretty amazing, and the 3G support is more than welcome. Critical features still are missing, and the battery depletes quickly under heavy use, but the iPhone 3G is a big improvement over the original model.

Specs: Apple MacOS X, Up to 600 min