Unfortunately they haven't yet posted much about the N810 and OS2008, but a good resource is the blog Internet Tablet School (http://tabletschool.blogspot.com/) which is run by one of the other forum members here. Perhaps you have seen it already, but in case you hadn't, I figured I'd suggest it.
(They are waiting for the final public release of OS2008 to do any new updates, but I suspect that a lot of the fundamentals are the same between OS2007 and 2008.)