I updated yesterday to the .190 OS which is out in the wild, and I "think" I am doing great on the battery now.
I cut down to 30% brightness, but wifi, bt is on overnight plus I have jivetalk and viigo running too. I woke up this am with my battery almost full!! like minimal drain.
I am hoping that is consistent and not some lucky coincidence
. So for now I will continue to use jive talk, as I find it to be a really nice application rather having multiple IM applications.