Samsung Q1 Ultra compare (Vista Home Premium)

Despite making improvements to its UMPC, Samsung still has work to do. The underpowered Q1 Ultra is best used for on-the-go Web surfing, but there are better and cheaper devices for that specific task, including that new device from Apple you may have read about recently.

The pocket-size Sony VAIO UX390 makes solid improvements over the first generation of UMPCs, but its target audience is unclear.

The OQO model 02 is a well-designed, attractive UMPC. If not for its slow CPU and short battery life, it would be a clear category leader.

The most laptop-like UMPC seen to date, the clamshell Vulcan FlipStart E-1001S offers welcome features including a touch pad, but it's still not the real-world practical UMPC we've been waiting for.

Ambitious but flawed, the Fujitsu LifeBook U810 has more of a traditional laptop design than other UMPCs, but the otherwise excellent keyboard is marred by the loss of several important keys.