may i ask, why do you want to go back to Tmobile and sidekick? Lots of people are not happy with sidekick. They switched to BB, verizon, or any other servies rather than Tmobile/sidekick.
I still have a sidekick lx. i have sidekick for 6 years. I haven't go to the other service yet. last week ago, my sidekick has been acting up for the whole 2 weeks, only email itself that was outrage and been fixed toooo long. I still don't know how to switch to the other service because i am too comfortable to be familiarize with my sidekick.
I am not good at changing. ha