Well it looks like Zune 3.0 is dropping the fall update for release on September 16th, and it definitely looks feature rich!
The one big feature I have been asking for, which is the ability to subscribe to an artist and have it download any new content on the marketplace is finally here. No more having to remember to search for new content for artists you like!
The Wi-Fi integration just took a giant leap forward letting you download and sync from any hotspot, which makes it truly a breakthrough for DAPs. It’s not just purchasing, but streaming media.
You can find a very detailed list of the new features here
You can also find some great Video demonstrations of the new features here