I probably stress the phone a little more than the average person, but I'm still fairly certain that PR 1.2 is giving me far lower battery life than I used to get with 1.1. I'll probably re-flash (already flashed it multiple times during the whole Unable to start operation
Refreshing cache. Please wait. debacle) it sometime this weekend and hopefully get better results.

First screenshot:

Paired NFC BT headset at home, started music, walked out to my breakfast joint. Screenshot was taken 11 minutes after unplugging, with music and 3.5G on the entire time.

Second screenshot:

13 minutes of browsing later. Still with music via BT.

Third screenshot:

Back home, disconnected BT headset.