Really nice machine with a crappy "720p" screen resolution. And because of that, I won't buy it. The rest doesn't matter.
As a side note, I have Ubuntu (Kubuntu actually) running on my current Dell laptop with no problems at all. While I'm happy to see Dell venturing back into the Linux realm, it's not a huge technical feat at this point. Support on the other hand... I really hope they succeed.
Well, I would probably hold off for a later iteration anyway. Hopefully the more ppi trend actually slips into PCs by then.
Intel Core i7-875K, Asus P7P55D-E Pro, Win 7 Home Premium
MSI GTX 560 Ti OC, Mushkin 2x2GB DDR3-1333, Corsair TX650
Cooler Master Hyper 212+, Logitech Z-2300, ASUS Xonar DX
Samsung Spinpoint F3 1TB, Dell Ultrasharp U2410, Antec P183