@xpclient:
1. Zune SW is no longer based on WMP. It was described to me as a "ground up" development.
2. Yes, all new Zunes, and the Zune 30 with the firmware upgrade, support WMA lossless.
3. No info on battery yet
4. Video resolution is 320x240. The TV-out signal is higher I believe, at least in the Zune 80