Right, it's taken a while but here's a newbie's guide to finding and installing software on the N800:

http://tabletschool.blogspot.com/200...lling-new.html

Feedback, comments, corrections etc etc all very very welcome. Please do say if you spot any mistakes as this is a very complicated topic.

I know there are lots of great apps which aren't catalogue-based, but as far as I can tell their installation is a bit too complicated for novices, due to compatibility and dependency issues.