1. Yes www.maemo.org has some great wiki's and info, not all newbie centric though. I have a n800 coming next week and plan to put together a newbie centric blog of how to do simple things up to complex things, referencing back where I got the info from.

Oh and minstral and what not.. those are version releases.

2. Don't know

3. Pretty much any bluetooth keyboard should work from what I have read. I am going to purchase one of the ones by stowaway.