I have Verizon service, with a LG Phone. I though my phone had an antenna port on the back, and I was looking for an auxiliary antenna to connect it to. I am working an event in a couple of weeks, and cell phone coverage is weak due to the terrain. I considering investing in an antenna for less the $50 to see how it works. However, since my phone does not have an antenna port, I am SOL.
In the next couple of months I will be upgrading to a DROID 2. It appears that the phone does not have an antenna port either, so eventually I will spring for a Wilson adapter.