I recently got my iPhone 3GS unlocked and thanks to a link given by member Applejuiced i verified that the phone is indeed unlocked. But now that i restored the phone, it wont activate since the phone did not have a SIM when i did the restore (my mistake). Now at home i only have MicroSIM from tmobile which my wife uses in her iPhone 4. I do that that yellow colored plastic adapter in which i can stick the microSIM but i am super paranoid about doing that and putting the SIM (with adapter) in the iPhone 3GS. I fear the microSIM might fall inside and get stuck. I also have the outer cutting of the SIM card from which i cut the tmobile micro SIM, if that helps. Am i being too paranoid and i can go ahead and plug the microsim to adapter and put it inside the 3GS or i should try getting a new normal SIM from somewhere ?