Battery definitely seems better. I did PR 1.3 OTA and have the following
- stock kernel
- at&t NYC area 2G no WIFI
- google IM always on and connected on edge
- check nokia messaging every 30 mins
- no widets other than calender desktop execution cmd

at the current time(6 hrs off charger), my battery would be at 74%, its currently at 84%

anyone notice similar improvements?