i have been running moblin 2.1 on a bootcamp partition on my mac. It runs really really fast, and isn't necessarily that internet dependent. The best part of moblin is that it is geared for smaller screens and even touch screens. the buttons are mostly bigger and easier to "click" with a finger. as well as most of the UI features are just easier to use in that manner. There are lots of "shortcuts" to things like the instant messenger and social networking (facebook). but those features are not forced on the user. Overall i think it is going to offer one of the best UIs for the in-car environment out there. If you haven't tried it out, go download the iso and virtualbox and give it a whirl (keep in mind that it will run very choppy in a vm but on actual hardware it is incredibly snappy), and let me know what you think.