I bought a N800 when the N810 came out, and just yesterday got a used N810 from a friend. What struck me is that the N810 touchscreen is so much more sensitive (and enjoyable) than the one on my old N800. I always have to use the stylus or my finger nails on my N800, while the N810 reacts to the lightest touch already. Is that just my N800, or are touch screens that different between models?