We're not sure how we missed this, but it seems the Nokia N900 (aka "Rover") was not only mentioned, but visually detailed in some candor during an Nseries presentation way back in October of last year. If you fast forward to about the three-minute mark in this video, Nokia's next-gen, Maemo 5-powered internet tablet is seen doing its thing, and it differs in a few key details from the last leak -- most noticeably, it's got a big d-pad on the left just like its predecessor and there's no sign of an earpiece for making calls over the rumored 3G radio. In fact, it really just looks like a whited-out
