Any hope for some of these to be running Ubuntu pre-loaded? Potentially they can be cheaper due to lack of Windows licensing. The only alternative today is Chrome OS (and there are quite a few new ones released already) and Windows 8 (oh the horror)
For my next laptop, might get a System76.
Slightly OT, but had money to burn for a work desktop and went with a Supermicro workstation. Very nice hardware. More expensive but much better than Dell/HP/Lenovo workstations. Ironically, still cheaper than a Mac Pro desktop. Also better -- Mac Pro RAID was a poorly thought through overpriced garbage, last time I worked with it up a couple of years ago.