Dell 10V with Moblin, Netbook Unleashed
From www.engadget.com
Moblin is an operating system that was created by Intel and Novell to create the Atom-Moblin Linux.
On the 24th of September, the Dell Mini 10v was released with the Moblin OS and made an appearance at Intel Developers Forum (IDF). At the moment the OS is not really for average consumers but it is available to give it a shot.
(via Netbook Boards)