PS Vita and PSP Go is probably the two overlooked handheld I've seen. I owned both of them and I like them. PS Vita had a good library(what I mean is that the library may be small but it does have good options in the game), looked slick and honestly, was better than 3DS in my opinion. I also liked the design of the PSP Go, and the system of only downloadable games was great, it meant that you didn't have to worry about the game going missing or stolen. However, it was apparently not the time for that kind of system to happen, even though it's now encouraged and it was working on the PC . Oh well, I hope that the recognition for the PS Vita continues on.