My experience so far.

9am November 16th fully charged.

Cell and Wi-Fi on for 24 hours (it is now 9:30am Nov 17th) along with a bit of light use BBM, maybe 30-40 e-mails received, some light web browsing and about 1 hour of music playback.

I'm now at 40%.

I'm quite happy with this OS... anyone else notice a drastic improvement in battery?

Are you on a 9900? If so you might want to update your profile ;)

Really?!

Is that normal? I took my phone off the charger at 7am this morning, barely used it. A little RSS reading (with a little browsing), some BBM (15msgs), Texting (10), like 20 e-mails and I'm already at 40%! I have to admit it's 4pm now so I've "used" it for 9 hours.

I definitely feel like i'm getting a shorter life out of mines than you are.