But marketing does not give you an automatic right to the product. (Note I am only mentioning marketing, because Arrington did not sell any of the products, obviously). You may tell how great your iphone is to all your friends, but that will not give you a right to any share of the iphone's profits.

If Arrington signed a contract with fusion garage to do their marketing, than he is entitled to what the contract gives him. But to say that he has an ownership interest in the product just because he did some marketing for it is imo just not true. While he may have ownership interest in marketing materials he may have created (such as the crunchpad name) I don't see how he can get ownership of the actual device.

BTW -- this is just wild speculation based on incomplete facts, none of it is legal advice.