I think it would be really cool if you could put together a console with a similar idea to the RetroN 5, but for the Atari 2600/5200/7800/Intellivision/Intellivision II/Colecovision systems. So, there would be cartridge slots for the various systems (some could be combined like the 2600/7800) and the console itself would run on Android with emulators, and would have built-in HDMI out.