My TMo contract is up in June. Will wait until iPhone 5 is released to jump ship to another carrier, AT&T or Verizon. AT&T just unveiled 4G LTE here in Orlando. Of course, Verizon already had it. I don't make international calls, but do make occasional interstate calls within US. I utilize my smartphone (currently BB Bold 9700) 85% for organizing my life & Internet, 15% for telephony. Can you recommend which carrier to consider, and why? Thanks!!