I've had apps crash before, but I've never had this happen before. I took my iPhone out of sleep mode and opened Chrome. I had it open on a Wikipedia page when I noticed it was not responding. I thought it was still rendering. 30 seconds later it would not respond. The home button didn't do anything. Even holding the sleep/wake button down didn't do anything. I had to resort to holding the sleep/wake button and home button down to get the phone to shut down. Had I just put it back in my pocket and forgot about it, I would not have realized that it froze so bad it could not get phone calls or text messages. Wow. That's sad. Has anyone else had their iPhone totally lock up on them like that?