I don't think those ideas are bad but I think they are in the wrong direction. Qgil stated clearly that any more code will not be opened. And maybe there is no need to. After the time it will take either to raise the funds and close a deal with Nokia (assuming that is ever possible) or to reverse engineer the drivers for the N900, most of the N900's will be dead and the device itself will be pretty much obsolete. So we might just as well code new drivers for a device of our choice. What's the most open device out there? How much blobs can we scavenge from the android kernel to work unmodified?

Other than drivers do we really need anything else opensourced to go along? Of course the more code is open the better, but the most valuable of programs are open or we have nice open alternatives, the drivers are at least redistributable so the things that remain closed are device specific like mce etc. They won't do us any good in the long term anyway...

We do have a mail client, application manager, browser, telepathy, phone client (from meego), camera app, text editor, office suite, file manager media player.
We are missing a calendar (maybe free, alternatives exist, it's just a calendar after all) messaging application, gallery and all those IIRC exist on meego, so it's a matter of porting.

So much for the user applications.

Now for the core, we lack drivers, mce, battery management and more. But I don't know how much effort we should put in those as they may be have to be developed again if we ever move to a new device (in some time it has to happen)