ok guys. i just got a new iphone seal from at&t. i did the activation though itunes and everything work find. Now the crazy thing is that i remove the att sim from the phone and insert a tmobile sim without turning off the phone and everything works except for edge. so i change the edge setting to wap.voicestream.com and no luck with edge. (remember, this is a new lock iphone not unlock direct from att) Is this crazy or what? to make it even crazier, i restore my phone on itunes, went through the same process and tmobile sim still worked. It does tell me (different sim message) when i restart my phone but i wait 10 second and tmobile sim still work. anybody ever try this?