although i am usually just a searcher and reader of this forum, I have to post here because i don't see people talking about a very sweet development. Quake three working and very playable on the x50v. about 25 fps. check out the engadet article
http://www.engadget.com/entry/1234000283067580/
or download it right here:
http://www.noctemware.com/downloads.html
edit: ok, ok, so they are talking about this in one thread on the gaming forum (noticed after a search), but i usually just link to the x50 forums.