One minute I was messaging a friend, hit the lock button then a couple minutes later tried to unlock it. Nothing. A hard reset doesn't work (yes I am holding volume down too) and iTunes won't recognise it. The vibrate switch isn't working and I've tried calling it and it goes straight to voicemail so I don't think it's just like the screen has quit on me suddenly. I've also tried booting into recovery mode via iTunes but nothing. I'm thinking that the battery might drain even if it's not on then when I plug it in it'll reboot itself? As long as it's not the battery itself that's died of course. Any help is gratefully received!