If you're one of the many buyers of the hot Zune30 or Zune80, you'll want to check out the firmware upgrade which should be hitting at some point today. No major new features, but you'll get a correction to an annoying battery draining problem affecting some users. And it's free! Merry Xmas from Zune!
Firmware update 2.3 [Cesar's Zune Insider blog!]