I posted on Facebook regarding the problems I've been having, and within minutes had 5 friends respond that they are having the same problems. I've disabled the "find my phone" app, and that has helped a lot. I've also disconnected most of the iCloud apps, which may have helped as well.
FWIW - I have an iPhone 3GS running iOS 6 and it works fine. The problem is with the software. A brutal update that has rendered many people's phones and pads virtually useless for anything beyond phone calls.
They need to fix this soon. What makes it more frustrating is when some people maintain there are no issues.