The lights are on
I've had Windows 7 since December 2008 and it works just fine with all games, programs, and even drivers that are meant for Windows Vista. It even works perfectly with some older games, like Half-Life 2 (even Half-Life 1 works fine). And it now works with Punkbuster perfectly. You'll also get Direct X 11 in Windows 7, which is already used in BattleForge, and it will also be used in Crysis 2, Race Driver: GRID 2, STALKER: Call of Pripyat, and even Lord of the Rings online.