This is just one less reason to jailbreak your iPhone but those that want extra features or apps that are just never going to make it to the established AppStore are still going to want to jailbreak. Yes, that was a run on sentance but it worked well together. The unlocked iPhone 4 requires an active micro-SIM card that you have to get from your GSM wireless carrier. (ie T-Mobile) For now you will still have to connect to iTunes to commplete the setup. With iOS 5 due in the fall; I wonder if that is going to still be nessessory.