Had a real panic this morning when I couldn't unlock my iPhone. Updated to 1.1.3 last night, then this morning checked email, phone locked itself as usual, returned to the phone and the screen didn't recognise any input ! Tried the slider again, no response. Pressed the On/Off switch, screen for Slide to Off/ Cancel appeared as normal but still no input being recognised. Can't remember what I did next (think I switched the ringer on and off and pressed the On/ Off switch again) and finally got the slider to unlock. Works fine now, but wondering if anyone else has had any bother ? Btw, love the update with multiple SMS, Maps, Home Screens. Brilliant.