Sprint guarantees to buy over $20 billion in iPhones from Apple, launching the iPhone 5 exclusively?

Now this is an interesting rumor. I'm not sure I see the logic in it; wouldn't Apple believe they could surely sell that many iPhones if they also included AT&T and Verizon which represent a much larger market (being the #1 and #2 carriers in the US).

It is a very interesting rumor, it certainly makes one pause for thought but I don't see the logic in it. Even with a desperate Sprint, I don't see why Apple would agree to another exclusivity contract.

That said, this is the type of deal that screams Tim Cook (in a good way). I'll guess we'll find out tomorrow.

Update #1, Wall St. Journal:
http://online.wsj.com/article/SB10001424052970203405504576603053795839250.html