Apple's business model is built on strict control of their products, both hardware and software based. It's the reason why the iPod is so tightly integrated to iTunes, and why you can't install their OS on whatever computer platform you wish (though there's a company called Psystar that's pushing those limits right now).
However, Apple's rediculous, unfair actions against Podcaster is making me wonder why they bothered opening up the iPhone to developers in the first place.
