All, I couldn't find any reference to this, but TMO's carrier settings have been updated to 14.5.2 in the iOS 7 Beta 2. I can confirm that the reception is much improved and the LTE reception has improved vs. my wife's iOS 6 TMO 5. Huge benefit. See attached pic. It was at 14.5 on beta 1.
Apple definitely needs to make 32GB Standard....whats going to happen to the iPhone 4 8GB model owners? with iOS eating up huge junk of the storage....I think right now they get 5.7GB...iOS 7 is sure to leave them with 5GB or less...might as well call it 5GB model....32GB is only giving 28GB....on iOS 6.1.4 I have 28.1....meaning another 100MB is swallowed by iOS in iOS7b2