Woke up today to this strange issue on my 64GB Slate Gray iPhone 6. I was just browsing Facebook fine while I was on the charger, but after I unplugged the iPhone all of the applications became unresponsive. I could tap on the icons, but no apps would actually load, even Settings. The odd thing though is that iOS didn't seem completely frozen - volume buttons worked, Touch ID worked, and the sleep/wake button worked. The other strange thing though is that no matter how hard I tried, I could not get the phone to TURN OFF. Holding down the sleep/wake button only turned off the screen and never gave me the "Slide to Shutdown" option. The phone also became alarmingly hot. I finally managed to get the phone to reset by holding down the sleep/wake button and the home button at the same time, but when it restarted the battery life dropped from 100% to 58%. Is this a common problem with the iPhone 6? I have to say, I've not really been very impressed with this iPhone after the last 2 years with my iPhone 5.