I am having battery issues after upgrading to 4.1.1, build JRO03H. Looks like the apps that are using the most power are Screen (37%), sdcard (28%) and Media (27%). The Xoom is noticeably much warmer to the touch.
I have rebooted several times and still my battery is running down, quicker than it ever has. I removed the micro-SD card thinking that this may have some affect but did not change battery drain. I m also having problems with responsiveness.
Hope this is a known issue and is being addressed