... (at least at the moment) the iPhone is a closed system. There will be no third party apps (apart from ones from companies Apple makes deals with, presumably).
I was so ready to start learning to program for it. Oh well, I live in hope that they'll change their minds.
It's sad, but I guess I've never really needed to hack any of my iPods, and it is just another iPod and a nice phone, after all. I'd still like the option, though :-).