I just put my phone though the ringer starting at 7am, went to the hospital with my wife and mother in law. Dozens of texts/facebook uploads and pictures. Baby was delivered ~530pm. left phone in delivery room for 1.5 hours. ~7pm several pictures and a movie (45mb) taken uploaded to Qik and facebook, a few lucky people got them texted (pictures that is). 12pm more pictures, 3am more pictures and another movie uploaded again and text messaged. when on the charge with 37% of the battery.
Day 2 went very similar but with heavier use phone was off at 6am and at 3am back on the charge with 25%.
I did not expect it to last this long or take such nice images/video, it really made our families happy with the images and movies being uploaded.
of course each day involved a few hours on the phone talking family and friends.