If you have an iPhone and like several people i know you didn't tether it and you are not happy with AT&T's 3G network chances are you have a Mifi 2200 card from Sprint or Verizon. These Mifi cards are pretty cool and now you can use the Mi-Fi app from your iPhone and see the following status: Battery Level, Connectivity, Data Received and Transmitted (since connected), Time Connected and IP address. Try it out and if you like it rate it!

Enjoy!
Daniel.