So I ordered one a week ago, and finally got it today. I installed windows 7, w/ boot camp drivers and fired up some games. Overall Windows 7 is great on the new rmbp, with 2880x1800, I had to set DPI scaling to 200%, and the only browser useable was IE. In OSX, it lags with retina scaling. Sites with lots of graphic elements destroys safari. In terms of heat, the system gets toasty with W7, and is toasty overall. The fans though, are not very audible. For gaming under W7, I've tested CSS, L4D, DOTA2, BF3, Diablo 3, and TW: Shogun. Overall, gameplay is good at 30+ FPS depending on the game and resolution. I'll go into specifics later. If anyone wants me to test something, let me know.