iPhone 5 won't activate without SIM card I just purchased an unlocked iPhone 5 from the Apple store today, and I can't activate it to use it because it says "please" insert a valid SIM card to use it. I'm not using this phone as a "phone" to make calls. I'm a developer and am just looking to use it for development purposes. How can I go about using the iOS 5?
You cannot activate an iPhone 5 without (nano) SIM card. You could go to a local store and ask if they have one for you just to activate and you're fine to go.

There is no point in buying a SIM card if you don't have plans to use it as phone.