The laptop comes with Ubuntu Linux 12.04 LTS plus a few additions. Dell worked closely with Canonical and the various peripheral manufacturers to ensure that well-written, feature-complete drivers are available for all of the laptop’s hardware. Out of the box the laptop will just work. They also have their own PPA if you want to pull down the patches separately, either to reload the laptop or to use on a different machine.

via Dell releases powerful, well-supported Linux Ultrabook | Ars Technica.