Currently it's only tested against a XBMC for linux but it *should* work against windows aswell.
This plugin is mostly to get the ball rolling and is way pre-alpha but I wanted to post it before my trip. Therefore I'm not going to be able to keep it updated throughout the summer

Anyway. here it is. It relies currently on having the standardised keymap.xml but will in the future not rely on that.
Only arrow keys and select will work on xbox verision currently.
offtopic: if any moderator could change my username to topfs2 instead that would be awesome as that's my userame on xbmc.org aswell, I missed the 's' when I registered.