Hi Jasper,
Its part of a bigger project - I'm doing a PhD at Dundee University looking at making music more accessible and how this can be done through various interfaces.
I'm working on arudino just-now, and going to be continuing with this for the next few months, then moving onto other things - wii-remote hacks, kinect, MS Surface - basically anything that I think would be an interesting interface for people to be given the opportunity to make something that they normally wouldn't normally get the chance to.
Thanks for the positive comments!
Mike