dsm man, have you seen this android tablet?
Speaking of imitation 3DS, the real New 3DS XL is pretty awesome for old school games on NES, SNES, and Genesis. Plus it has some nice N64 remakes like Starfox 64, Zelda OOT, and Majora's Mask. Though even on the official Nintendo VC emulator Super Mario World is hard to play (the only emulation that game has ever felt right on for me is on the SNES Classic). If you find a New 3DS, New 3DS XL, or New 2DS XL with firmware from 9.0.0 to 11.3.0 you can easily install custom firmware on it. If not you can buy a R4 cart from China to install CFW. It's pretty awesome for both new school and old school handheld gaming. Plus that cartridge will let you play DS games off a microSD installed into the cartridge.