Update:
Battery life is fine. Managed to get 14 hours of average plus use out of it today (over 1 hour talk, 2 hours web browsing (Viigo inc), 20+ IMs, 10+ emails, 10+ SMS, 30 mins Word Mole (to keep me sharp). Battery now at 10%.
Apparently the battery level indicator does not function properly until after the next full charge, hence my poor battery performance yesterday.
Load up .87 and go for it. It's pretty good overall. I'm happy
PS: Agree with Altadr above: I found .83 better in signal and battery life department. But I find .87 may be better overall compromise. Sticking with .87
extra update: battery ended up lasting 16 hours total yesterday (though I didn't use it much in the last 4 hours)