Details: iPhone 4S (MD239B) O2-UK (O2 12.0) 5.1.1 (9B206) Modem FW 2.0.12 Problems: Occasionally phone shows no signal bars in strong signal area, phone works and shows "3G" Phone will drop off the network but still report signal strength, you dont notice until you try to make a call or realise you havent had an email for a few hours! Quick restart followed by a flood of voicemails/emails/texts! Push email on iCloud - works occassionally. Very hit and miss, my other exchange accounts are flawless. Waking from sleep - sometimes doesnt react to first button press, press again and it acts as if ive pressed twice (so obviously registered the first press) Text alert - the sound will stutter occasionally iMessage - messages report as failed have infact been sent, some get lost forever, some show in different orders on different devices, some get sent as iMessage and text, some messages will not send AT ALL until the phone is restarted Could somebody with a dev account register some of these bugs for me? Or is there a way for a mere iPhone user (since '07) can submit bug reports to Apple? Thanks guys.