In additon to firmware update to Zune HD that enabled 3-D gaming, Microsoft rolled out new games:

• Audiosurf Tilt creates a rollercoaster ride from any song.
• Checkers is a beautiful classic outdoor park setting. Play against computer or against a friend.
• Lucky Lanes Bowling in different game modes: exhibition, blackjack, golf.
• Piano: Play your own tune, or play along with your favorite music on this electronic piano.
• Project Gotham Racing: Ferrari Edition: Tear through streets of London, Tokyo, and New York in Ferrari of your choice using multi touch controls and built in accelerometer.
• Vans Sk8: Pool Service: “Put these Vans skaters to the test with all the tricks in their bag and achieve hero status once you unlock their pro model skateboards.”

Download: Zune HD Marketplace