First shown at Bill Gates's keynote CES speech, the OQO model 02 is being billed as the world's smallest Windows Vista-capable computer and the first computer in the UMPC (ultramobile PC) Pro category. The miniature device weighs just 450g and measures 142x84x25mm.

According to OQO, the 02 features numerous improvements over its predecessor. It's up to four times faster, and has a significantly brighter display (up to six times brighter than the model 01). The improved keyboard is now backlit and has capacitive TouchScrollers for easy navigation. The model 02 also provides an array of wireless connectivity: EV-DO Wireless WAN, 802.11 a/b/g, and optional EV-DO 3G support.

Prices start at $1,499 for a unit with a 1.5GHz processor, a 60GB hard drive and 1GB of memory. The OQO model 02 is due to ship by the end of the first quarter.