Anyone Wanting to Try Rasberry Pi ?

but buying one of these to get kids programming just can't see it happening personally.

The problem is that a lot of teachers in UK schools are quite poor at the subject they are supposed to teach and many will not let the kids have exposure to something they don't understand on their machines in case they "break" them.
Otherwise Processing would fill the bill nicely.

With the Pi they can isolate programming kids from their expensive machines.