Check out these doozies:
1) Lightning-fast enumeration and listing of all Xbox Live® Arcade games on the console.
2) Stream music, pictures and video from a Zune device.
3) Improved UI performance in Media Center Extender
#2 is one of those things I’ve been DREAMING about. Imagine walking into your home carrying your Zune. Now imagine being able to play all the content on your Zune using your Home Entertainment system – the 60" Big Screen TV… the Dolby Digital 5.1 Surround Sound system…
…all without connecting a single wire. Just walking into the same room, and kicking off your XBox360 is all you’ll need to play your videos in full screen… your music with BIG sounds… and share your photos with anyone in the room.
Oh. So wicked.