From the Believe it when I see it dept.:
...the Mini's specs match several of its competitors'. A glossy 8.9-inch display with 1,024x600 resolution shows most Web pages with no need for horizontal scrolling. Under the hood are Intel's Atom N270, a 1.6GHz one-core processor with 2MB of Level 2 cache, and GMA 950 integrated-graphics chipset.

The $349 configuration will feature a custom Dell interface atop Ubuntu Linux 8.04, much as Asus and Acer offer customized versions of Xandros and Linpus Linux, respectively.

internetnews.com

huh, linked from the dell front page too.