Just came across this on engadget, looks like I have something to try when I get home from work today, can't wait.
http://www.engadget.com/2008/10/01/boxee-xbMc-now-available-on-apple-tv/
http://www.engadget.com/2008/10/01/boxee-xbMc-now-available-on-apple-tv/