Getting about ~11 hours usage.
Charge overnight: wake up at 7:30am
browse for 15 min in bed.
MS Exchange Push kicks off from 8am until 9pm (push times, other times manual). Receive about 50 emails /day
I also have a GMAIL imap connection open all day. receive about 30 emails/day.
Spend maybe 20 minutes a day on voice calls. Send/receive about 25 texts. Additional ~1h of browsing. Play DrNokSnes for ~15 min.
by around 6pm the battery is nearly cooked in the red zone.

I have a feeling the MS Exchange and imap connections drain the battery. I get about the same results on both 3G only and 3G/Wifi