Microsoft has released firmware version 4.3 for the Zune HD 4.3 bringing a host of new features and 3D support. There are 3D games and apps now available at the Zune Marketplace for free of charge.
The games include:
Project Gotham Racing Ferrari Edition
Lucky Lanes Bowling
Vans Sk8: Pool Service
Piano
Audiosurf Tilt
Checkers
I can't tell you how long they will offer these free games, so if I were you I would get them while you can.
