I have used the R2H at work and its a horrible piece of junk. I do this stuff for a living and it took me 3 days to get it to run stable. The drivers are a joke for a start and the GPS takes about 10 mins to get a lock. I agree on paper the R2H is the better kit but in practice it should never have been released in the state its in. If you want to go UMPC then I would look at the Samsung Q1 which is a much better bit of kit and worked out the box once all the Macaffe stuff was striped out. They aren't fast by a long road though and no amount of stripping down will sort that. Other problems are all the connections are distributed around 3 sides making it difficult to package into a car dash neatly. The screens aren't very bright either, both of them are dimmer than my K301.