Of course the iPhone/iPod Touch has the added benefit of great integration with a Mac but if you are not a Mac user, how big a deal is that? What I don’t know is how a Mobile Edition device integrates with a desktop/laptop running a full version of Ubuntu? Would we see the mobile device synchronise with the desktop/laptop when it is plugged in? If not, I imagine that would appear soon enough.
As awesome as the Mac OS is, I don’t think it will be too long before Linux based devices become pretty darn appealing, if not compelling for people like me. The one thing I am concerned about with my Mac is that the deeper I go down Uncle Steve’s rabbit hole, the more I am locked into this ecosystem. Ubuntu and Linux generally represents a more open ecosystem (potentially) and the key issues to address are probably usability and flexibility.