As of now, we don't know of any plans for AT&T to release a pre-paid plan for the iPhone 3G (in fact AT&T has said that they won't be doing this at all, but you never know). Of course this isn't the case overseas where many carriers will offer this choice. So just how many new iPhones will be pre-paid? While no one knows the answer, Piper Jaffray analys Gene Munster has an idea.

Munster believes that Apple is charging carriers around $425 for the phone, which they will in turn sell for $600 or more. He believes that roughly 1 out of every 10 3G iPhones sold will be one of these unsubsidized pre-paid phones.

[via Infinite Loop]