The Unofficial Apple Weblog has a great post on how to get a prepaid iPhone – guaranteed. If you sign up using iTunes and enter your social security number as 999-99-9999 (obviously an invalid social security number) your credit check will fail and you’ll be prompted to sign up under AT&T’s prepaid GoPhone service. I’m sure thousands of iPhone users who don’t want to be locked into contract with AT&T will find this to be very useful.

Below are the GoPhone pricing plans for the iPhones.

Via TUAW.com