Taiwanese Dialogue showed its ultra portable Windows XP notebooks at the Computex 2005.

The TechReport has some nice photos of the tiny Flybook. Measuring only 235x155x31mm and weighing 1.2kg, the Flybook has a 1024x600 pixels screen and GPRS, Bluetooth and Wi-fi connectivity built-in (3G Card available). The model in the photo is the A33i running a 1GHz Transmeta Crusoe-based system with 512MB. The A33i is already available already in Europe with a price ticket of about $2,000. The new Flybooks V33i and V35i feature the Pentium M "Dothan" running at 1.1 to 1.2GHz. Those new models are not yet on sale.

The Flybook A33i comes in six fun colors (see photo below). I would definitely get the yellow one. Flybooks are not available yet in the US, but might come soon. I would wait for the new V33i and V35i with the Intel CPUs.

For more information see Flybook.biz, Dialogue.com.tw. Handtops reviewed the Flybook a while ago.
See also the review on PocketPCReviews and on DigitalReviews.