This is a slide from this presentation:

http://research.microsoft.com/apps/video/default.aspx?id=161546&l=i
http://msrvideo.vo.msecnd.net/rmcvideos/161546/dl/161546.xps

http://tinypic.com/r/33vdlk3/5

It shows that Drawbridge has been implemented on Midori and Barrelfish, so Windows apps can run unmodified on these operating systems. Smiley