I guess whatever has to be done to get people interested in Windows, has to get done. Fake leaks, check. Little tiles, check.
How about some more promo pricing? Install Windows 8 on the 8th at 8:00 for $8! Create 8 Windows 8 Apps and get 8 Windows 8 licenses for your friends!
Trade your iPhone in for a Windows 8 phone, get a Windows 8 license.
Take the fear factor route, go to a Microsoft store and eat 8 meal worms, get a license. This is really not that hard folks.