Post here if you are having issues with certain apps all of sudden freezing and your touch screen stops working. The only way to fix this is to restart the phone...because nothing else works other than the home screen. I've had this issue with YouTube, Clash of Clans, Pirates, email.... I've read countless reports online people were having the same issues. I was having this issue with my iPhone 5 when I upgraded to iOS8 and now I am having the same problems with my iPhone 6 with iOS8.... Apple Q/A team is a total fail! How can such bugs even make it through the testing phase is beyond my imagination! Few people need to be fired because of this!