So I broke the back of my iPhone 4 when I dropped it, but I'll be sending it out to Square Trade soon. The question is, am I able to take my iPhone 4 MicroSim, put it in a home made adapter, throw it in my iPhone 3G, and still be able to make calls and use data? Or do I just have to wait for my Iphone 4 to get shipped back from Square Trade? I've seen some articles about putting an iPad microsim in an iPhone 3G to make it a data-only device, but I wasn't sure about using the iPhone 4 MicroSim. Hopefully I can make myself a temporary phone while I wait for my iPhone 4 to get shipped back from Square Trade.