* Wireless sync: wirelessly updates content on the device when it is within range of the PC with the Zune Collection on it, or on the same wireless network. You can start the sync manually or, when its plugged into AC power, Sync will automatically start after 1 minute of inactivity. This is so the battery doesn’t get drained by the automatic sync.
* Expanded wireless send capabilities: you can now keep a track for three plays (we’ve taken any time restrictions out of the equation) you can also send a track you’ve been sent on to other Zune owners.
* Lossless playback will be supported on every Zune
* Podcasting – that is, automatic RSS based subscription to both audio and video podcasts via Zune Marketplace (more on ZMP below).
* You’ll be able to sync your Vista Media Center TV content to your Zune and watch it on the go.
* We’re still testing battery life on the new Zune 4GB, 8GB, and 80GB, but it’s looking good. Since we built them from the ground up, we have more control over battery performance.
* Updated device UI (screenshots to follow)