Haven't bought an iPhone yet, still have my almost 4-year-old Treo 650. I charge it every day at my desk, and leave it plugged in after it's charged. I'm STILL on the original battery and can go for days without charging it. Seems like I haven't lost any battery capacity at all. Can anyone give me an explanation for this? Not that I'm complaining!!
Can't wait to get an iPhone though!! Soon, soon my precious...