Hey gang... Ok, so I have my personal 3G iPhone with AT&T. I've been doing some iPhone dev stuff at work, deploying it onto iPod Touch units that we have provisioned with our corporate dev key. However, there are times when I need to run/test my application with network support. the problem is, we don't have Wifi at work (security issue). I DO have access to an old 2G iPhone that isn't being used anymore. I was wondering if it's possible to get that unit added to the provisioning list, and if I could just swap the SIM card from my 3G into the 2G when I need to test with network capability other that Wifi, and then swap it back when I'm done. Is that do-able? Or are the SIM cards somehow locked to specific units?