I ran this for about 11 hours yesterday. Corporate push email (Exchange), google email and a couple of POP3 emails checking fairly frequently. Talked on the phone to the wife all the way home for 20 minutes. Took a couple of calls at work and played (yes I played) Angry Birds for probably 3 hours...wife has an iPod Touch so I would say the comparison on speed is 50-65%, slow but playable. When I shut it off at 10:20 pm and rebooted into WM I was at 8% battery.

I don't trust an overnight charge in android yet...sorry, it's a corporate phone and if I nuke it I gotta buy it.

Otherwise, this is by FAR the single most stable and usable build I've used to date. No crashes, no hangs, I didn't even get any "This app is failing to respond...you want I should kill it for you?"