is the iPhone more closed than before?

What didn’t they say at the iPhone 3G launch? What didn’t they clarify? And what as a user are my fears. Is the walled garden more walled than before? While the iPhone now reaches every country with deals and a promised (max price $199 everywhere) the question becomes what’s the contract? Can I unlock it? Etc. Do I have to go to the iTunes store? Will the big players abuse my trust? We know that Apple has convinced the carriers that there is no other phone that can take them into the 3G