I like Sprint too, but I disagree. Sprint's pricing has historically been too good to leave to another carrier. Even you want an iPhone -- can you really justify the price hike for it? It's actually a much better deal, even in the short term, to get an iPad with 3G than move your cell phone service to ATT (especially if you have a family plan like I do).

I think if the iPhone comes with the same price plans as today you'll see Sprint sell a boatload of iPhones.