c#

Not convinced. Hope not.

If the kids end up trying to make athletics day timers with a raspberry pi it might well be python.

A lot depends on what the projects will look like - there is an opportunity here for some intelligent vendors to bundle up some hardware, a dev environment, some examples and some teaching material.

I'd like to throw in a word for http://processing.org/, but I don't suppose anyone involved in delivering the programme reads elReg.