I upgraded my 1st generation iPhone (which I've had since the day it was released last year) to the 2.0 software. Ever since I did, it seems to be sucking the life out of the battery. Before the upgrade, I had no problems with battery life. I've downloaded a few of the new applications, but I've done nothing else different than I've been doing for the past year. Anyone else having the same issue? Also, since the upgrade, the operation of the iPhone has slowed down (going from application to mail to browser, etc.). Anyone else?