In 2007 Dell started a highly publicized experiment with loading Ubuntu on some of its machines. Suffice to say, it wasn't a resounding success -- despite Michael Dell's ringing endorsement. Though their relationship seems to petered out (US customers won't find a single machine running Canonical's open-source OS on Dell's site), the two companies aren't quite ready file for separation just yet. The two are looking to rekindle their love by heading acr