Fujitsu LifeBook P1510

First take
Moving away from a Transmeta Crusoe processor, the Fujitsu P series now has a tablet notebook based on the Intel Pentium M platform. This convertible laptop with a swivel screen does not scrimp on processing power despite its incredibly tiny footprint. The current model runs on Microsoft Windows XP with RitePen handwriting recognition software for data entry. But by end October, new models of the LifeBook P1510 will be installed with Microsoft Windows XP Tablet Edition 2005 and have Bluetooth functionality. However, Fujitsu has no plans to retrofit existing units with Bluetooth connectivity or provide upgrade of the OS to Windows XP Tablet PC Edition. ...
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ThinkPad X41

The good: Light and thin design; comfortable keyboard; fingerprint reader; dedicated security hardware; includes multimedia dock; excellent battery life.
The bad: Expensive; heavier than the ThinkPad X40; pedestrian 4,200rpm hard drive.
The bottom line: Though costly and a bit heavier than the ThinkPad X40 it replaces, the ultraportable ThinkPad X41 is still a great choice for the corporate road warrior's dream machine.
  Read full review of the ThinkPad X41

Asus W5A

The good: Light and thin design; comfortable keyboard; fingerprint reader; dedicated security hardware; includes multimedia dock; excellent battery life.
The bad: Expensive; heavier than the ThinkPad X40; pedestrian 4,200rpm hard drive.
The bottom line: Though costly and a bit heavier than the ThinkPad X40 it replaces, the ultraportable ThinkPad X41 is still a great choice for the corporate road warrior's dream machine.
  Read full review of the Asus W5A