I'd like to have a 4G iPhone, especially since I am grandfathered on unlimited data on Verizon. The EVDO can be a little slow at times but not as slow as 1xrtt. The city I live in now is 4G but Maine (where I travel to quite a bit) is still 3G.
Maybe the LTE iPad is a sign that a 4G iPhone is in the works --
All of my CPE (including my EMTA) is customer owned. The only Comcast owned equipment in my house is the CableCards in the two TiVO boxes I own.