Thanks to the Zune firmware update, you can now install TONS of cool, free, 3D games on your Zune HD! One of these games is PGR3 which is a pretty graphics intense game. The Nvidia Graphics are sure doing the Zune HD justice! Another cool thing is that these games are free. Being such good games, it’s surprising that Microsoft made them free. PGR3 is a game that would have cost $10 on the iPhone. Head over to the Zune HD marketplace right now to download them!