Peter the Ha was lucky enough to get a little face time with the N810 a month ago and Ars Technica got to play around with one yesterday as well. They found it to be "impressive" but think that the keyboard could have been executed better, which is somewhat unfortunate because the Nokia Internet Tablet family has been aching for the inclusion of real keys since the 770.
I like that the N810 comes with a car mount. I tried in vain to find a suitable solution for my 770 before giving up and selling my car back to the dealership. Was the lack of a decent mount the sole reason I swore off driving forever? The world may never know. Anyway, click the link below for more pics and analysis.
Nokia N810: unboxing and first impressions [Ars Technica]