My suggesions:

- work with/for n900 for now;

- first BIG goal is to create a rootfs that will provide virtually same functionality as current Nokia's firmware without anything else installed, but within debian infrastructure: connected debian repos (+ project-specific repo with debs with nokia stuff and not-yet-in-debian software for n900), ability to install additional software from these repos;

- first SMALL goal is to create a wiki page that lists all debs in nokia's firmware and what is our desicion on action with that deb. And what to do with out-of-any-deb objects, if any.