iPhone4, 4.1, jb About a week ago, I noticed my iPhone4 battery would be at 35% in the morning after starting at 100% six hours earlier. Hmmm. Why? I started keeping an eye on the phone and saw the ATT signal bars cycling between 3 or 4 bars, to Searching, to No Service, then start over again. I live in an area that has a weak 3G, strong Edge signal and work where there's a strong 3G signal. I used SBSettings to turn 3G off and the battery stayed at 100% all night. Why wouldn't the iPhone4 stay on the Edge signal instead of searching? P.S. - I did a Network Reset - No help.