... and Apple will do whatever they can to brick those phones, and in the arms race that follows, it's a coin flip as to whether Apple will win (like DirecTV did) or lose (like Microsoft did with the first Xbox).
Also you can jailbreak the thing without additional hardware which wasn't possible in the DirecTV scenario. I doubt that we'll see jailbroken iphones going away anytime soon, the process is becoming effortless even for non-hacker types and the benefits are obvious (even if you've never heard of Freedom 0).