Just in case you missed Walt Mossberg's sitdown with Steve Jobs earlier today, but in the open Q&A his Jobsness was asked point blank about the openness of the iPhone, and whether users can expect their $600 cellphone to be able to add on third party apps. His reply?
"This is an important tradeoff between security and openness. We want both. ... we'll find a way to let 3rd parties write apps and still preserve security on the iPhone. But until we find that way we can't compromise the security of the phone. ... I've used 3rd party apps... the more you add, the more your phone crashes. No one's perfect, and we'd sure like our phone not to crash once a day. If you can just be a little more patient with us I think everyone can get what they want."
You heard it folks, Apple's working on allowing third party devs into the hallowed ground of the iPhone. One big issue (kind of) down, now we've just got to work on getting that thing a real keyboard and some 3G.