But you can't buy apps from the Android Market unless you have a Google account. I have one, obviously (and a lot of apps that make me happy on Nitdroid) I'm not saying that I don't buy stuff - I do - but I also had an unlocked G1 a year ago that was unusable until I figured out a way to log in with a non-T Mobile account. That didn't endear Android to me. I gather that iPhone is similar when you go the jailbreak path.
That's kind of my point, though. Both Google and Apple have backdoors into devices that make them vulnerable and I don't like that on principle.