My iphone suddenly stops all "phone" part. I have to do the home + sleep button to reboot the phone to get it to work. My WiFi which has been working perfectly fine, suddenly stops working and I have to reboot the phone again. It is totally random and is getting really annoying. So, do you guys think there's something wrong with my phone? should I take it to the genius bar and try to get it fixed or get a replacement one? I am one of the June 29th guys and I have a 4gb iphone. If they have to replace it will they give me a 8gb or make me pay the difference? Please help! EDIT: I have given up using WiFi for the timebeing and am using EDGE... Yes I know, but beats having to restart the phone.