While traveling on the road for Christmas I was streaming music and it began to cut out. I noticed I was on 3G so I asked my wife what she was connected to and her IPhone was on 4G (HSPA not LTE). Is anyone else experience this? Obviously I'd like to be connected to 4G rather than 3G. I'm on 6.0.1 build MMB29K. The phone does connect to 4G (I've only really noticed LTE) so it isn't always on 3G. Normally when I'm in town it is on LTE.