Just a heads up, Dell is now selling the 2015 XPS 13 at a discount and running Ubuntu. No Windows license included.

The early criticism so far is that while Ubuntu can challenge Windows 8 from a usability perspective, it apparently suffers at being finger-friendly, being battery efficient, and making most of the HiDpi display. Anandtech are awaiting review units from Dell.

I think the criticism is true, but we'll see how exaggerated it is, once we get some reviews flowing through.