Based on my experience with the iPhone and Apple, both as a developer and a customer, I'd bet a lot of money that a person  who has bought an app for their iPhone will also be able to run it on their iPad without paying for it again.<p>Right now, I'm paying for two iPhones on one AT&#38;T account, one for me, one for a friend. If I buy an app from the app store, it will run on both phones without me having to pay for it twice.