How is it going to work, do I need a linux distro with xbmc only? Right now my configuration is Win7+xbmc and I don't have xbmc on auto-start for now.
Otherwise that sounds too awesome to be true, I just learned how to use WOL with my Win7 and so far this saved me from loosing few calories. Ability to wake xbmc would save me from touching mouse and keyboard altogether.