i work at radioshack and we sell this card reader that reads sim cards. so if you sim card gets messed up you can use this reader and some other software ( i will research what to use) you can even image the sim so when you get a new one you just image your old sim info on to it. no need to call att or tmo! i do a lot of engineering with small binary-like software so let me know if you are interested in that.
