Getting a notification that my "su binary" needs to be updated. Tap to continue and then it fails saying that "gaining root access......fail!" I am rooted and rootchecker confirms the root. The calibration tool doesn't work either saying i'm not rooted.
I don't know if that has anything to do with my battery life though since non rooted users are having battery issues post update also.
What I would do is manually install the SBF file that you can find floating around the internet and update that way. I installed manually and then rooted with no problems, and my binary updated as well. As far as battery I haven't been able to test it out much, but many people are complaining about horrible battery life.
I went to the market, clicked uninstall superuser. It didn't uninstall the program completely but it did remove an update. I then re-installed the update and I was able to successfully update the su binary.