Two machines make their debut: the HP Compaq tc4400 and the Lenovo 3000 V100.

The HP Compaq tc4400 is a compact, convertible tablet. The $2179 model's design features such thoughtful touches as a fingerprint reader at the top of the screen--so it's usable in both tablet and laptop modes--as well as a Ctrl-Alt-Del button at the side of the screen, for easy access in tablet mode. However, this laptop is a bit bulkier than you might expect of an ultraportable. In addition, the device weighs 4.6 pounds, a little heftier than competing ultraportables we've seen. Its WorldBench 5 performance was quite strong (it achieved a score of 88); but its tested battery life, though good at 4 hours, 11 minutes, was more ordinary.