I've been playing around a bit with my brand new 6+ today and have been loving it. However, I have noticed that it gets incredibly hot when playing graphic intense games. For example: when playing modern combat 5, the phone becomes uncomfortable to hold within 4-5 minutes. It gets so hot I worry that's it's about to overheat. Also, the phone is not plugged in, and I have a loose grip as well. I guess I'm curious if anyone else is seeing this, or if it's possible I have an issue that would warrant a trip to the Apple Store.