FWIW, I upgraded the old fashioned way, sold my N800 and bought the N810. And I LOVE it. It was hard for me to part with the extra cash when the specs are so close on paper. But the sunlight screen + GPS + keyboard is really nice. I mounted it on the bars of my motorcycle and did a GPS test run and could read it in bright Texas sunlight...

The only thing the N800 beats the N810 in is storage capacity.

David