Using the N800 the way it should be
I have to admit that I haven’t tried this yet but Andy Abramson has paired his N800 with a Bluetooth keyboard and posted a pic of it. Cool use of mobile technology but I hope the plane hasn’t taken off yet, that’s a wireless keyboard. 
Stowaway makes a great keyboard that will work with the Nokia out of the box. It’s the only keyboard choice since the N800 will not go into USB host mode, like the IT770 (big shout out to ThoughtFix for the help with this issue).