Estari offers the 2-VU dual touch-screen portable computer.

The 2-VU folds like a Laptop but lacks an integrated keyboard. Estari provides a desktop stand that allows you to use the 2-VU like a dual-screen PC monitor. The Estari 2-VU runs Windows XP on a Intel Dual Core Processor 1.83ghz with 1GB RAM, 60GB HDD. Each touch screen is 15 inch in size.

The Estari 2-VU has definitely a high coolness factor. The US military was their first customer several years back. Now Estari offers their patented dual-screen portable computer to consumers.
Coolness comes at a price. The base configuration of the Estari 2-VU is $4350.00.
More details about the Estari 2-VU can be found on the Estari site.