I did - but the IdeaPad only has an Atom processor, so the apps ran really sluggishly - also, it doesn't add any multitouch additions to the main Windows UI that I noticed. That said, I didn't realize MS had released the Surface stuff, so it was still fun to play with.
http://windowsteamblog.com/windows/b/windows7/archive/2009/0...
http://www.microsoft.com/downloads/details.aspx?FamilyID=b15...