From full charge, I'm don't quite get two full days.
Normal daily use is a few text messages, a few phone calls, downloading and sending a few emails using he email client. I have News Buzz on home screen along with Accuweather and also update the Psiloc World Traveller via GPRS.
In the evenings, its used for around 45-50 mins down the gym. 30 mins of video playback, and anoterh 15-20 mins on music player.
I have touch screen vibration on a full, screen to full brightness. Would be happy fo rit to see out two full days, that I live with very easily, but I'm used to carrying a charger around with me, and also have the USB cable on most times