I charge my iPhone 3GS overnight every night. Yesterday I get up around 7:00 a.m., check my twitter on twitterfon, check my RSS on NetNewsWire, and do some texting. I go to work. Use the phone for maybe 1 or 2 short phone calls, and a few texts. 10:00 a.m. I pick up my phone to make a call and it is dead. I thought it wierd, so I plugged in the car charger. I couldn't get it to come on. So when I got home I put it on the home (wall charger) and after a couple minutes it came on and showed 60% battery. I let it charge to 100% (which only took about 20 minutes). Took it off the charge and reset the phone. I was hoping it was just a software glitch. A couple hours later the phone was near dead battery again. I called apple and they instructed me to do a restore as new and charge overnight again. I restored the phone, charged overnight (with a different charger and wall outlet). Today the same thing. So Apple is going to replace the phone. Just curious if anyone else is seeing this? I have not dropped my phone or hacked it, it is original iPhone 3GS. The only thing that was different from one day to the next was I installed the update to iTunes that came out a couple days ago and synced my phone after that. No new apps or anything.