Thanks to all: the General, iamNarada and paps. So, if there is some data on both cards in a n800 -- (Nokia's furnished card) and one I purchase -- the class should not affect the tablet's performance if one card is a class 2 and the other is a 4 or 6? Correct? Or should we all aim a class 6 card?? Like tires, I don't wanna be going down the street with one fat tire and skinny tire that keeps pulling to the left....