Anyone get an armband or belt for their GS4 yet? I'm shopping for one at the moment - not necessarily for only running but for general gym use as well. I had a Tune Belt arm band with my iPhone 4S, and it was great, but I've found myself needing access to my phone more and more at the gym (tracking workouts, changing songs, etc.) and armbands don't really provide easy access. I'm intrigued by that FlipBelt above. Anyone have one?