Has anyone noticed a big battery drain problem with IOS 6? There are lots of reports of iphone 5 battery drain issues and I'm having the same problem. I don't want to update my old iPhone 4 if it is really an IOS problem.
Regarding maps, Google Earth works fine on IOS 6 and looks excellent on an iPhone 5.
Regarding Youtube, check out Jasmine at the App store. It's seems to be the best Youtube client you can get on IOS. ^