I have been having two main issues with my iPhone3GS since I updated to IOS4. 1. Random restarts. I'll be listening to music and on a phone call and suddenly I cant hear anything, When I look down I see the Apple logo and the phone goes into a restart. 2. Battery drains dramatically faster. I would love to know why this is. I find myself constantly having to monitor what is open and closing everything every time I touch my phone to try and conserve battery but even that does not seem to help. I'm not sure if this is dude to the new multitasking issue but I feel like it must be. Is there a way to turn multitasking off? Is anyone else experiencing these issues?