The whole point of the RS-90 was the micro size, this has the same crippled SoC but in a bigger shell. Aside from the ultra cheap price there's not much to get excited about.
GPD Win, GPD XD 64gb, PlayGo, RS-90, 3DS XL, DSi XL, GBA SP, GBBC Clone, Gameboy Pocket c/w screen mod, PSP Go
Medion Erazer, Toshiba Z20t, Dell Mini 9, Psion 5MX
Tons of other old laptops and tablets.....