[DanoH5656]

Just chiming in my own with battery test times. All are with few phone calls, no bluetooth, no wifi, not running additional programs, times recorded by me and a trusty clock. Completely unscientific and all, just making the disclaimer:
20755 Build
* Full to 20% = 16 hours 32 minutes
* 20% to 10% = 1 hour 2 minutes
* 10% to shutdown = 28 minutes
20931 w/ latest:
* Full to 20% = 14 hours 53 minutes
* 20% to 10% = 51 minutes
* 10% to shutdown = 19 minutes

There does seem to be a difference in this one test, but it may not be significant. I'll do a few more and run it against some t-tests to check.