I bought the Nokia keyboard for full price. My assumption was that it was most likely to work correctly with the N810. Silly me. The size is great but there are some serious problems with it. I frequently get bursts of repeated keys. Changing the keyboard repeat timeout had no effect. That made it unusable for me. Also it was designed for a Nokia cell phone and has function keys that perform no function on the N810 and is likewise missing the function keys on the N810. I hope you have better luck. The tablet's slide down keyboard is fine for data entry but not up to writing. I plan to get one of these little USB keyboards.