This caller actually sent a text message saying that Apple is looking for people to Test and Keep the New Iphone5. But only the 1st 1000 users that go to http://iphone5test.co and enter code BETA will receive it.
When you go to that page, there is a form to complete which has fine print stating they are not affiliated with Apple in any way. Sounds like just a phissing outfit get your information. I chose not to proceed and alert everyone about this company.