I've added a tutorial on using Bluetooth headsets (as the N800 and N810 are now officially compatible with them):

http://tabletschool.blogspot.com/200...p-and-use.html

and there are more updated versions of older tutorials now on the contents page (updated to take account of the N810 and the OS 2008 update for the N800):

http://tabletschool.blogspot.com/200...ents-page.html