I apologize for such a basic posting but I've poked around a bit and I can't find what I'm looking for.

I would like to develop and application that runs on the PC, like the PC Nokia suite and interfaces to the Nokia 6800 and similar devices. I may have to write something for the phone itself to accomplish what I want to do, or I may be able to use something that's already there. I don't know.

Where do I find basic documentation of how to do development for the PC interfacing to the phone and for the phone and for interfacing to things that are on the phone?

Thank you,
Jerome