more handhelds?

i remember there being other handhelds on this site as well (sega, etc) did they get removed/d-listed or am i misremembering things?


also, would the 3ds count as 2 generations old by now? i remember it coming out at the time of the wii, and idk if nintendo is going to make another handheld, so im judging it by wii, wiiu, switch, tho that may not be the case