A Virtual Console app would be huge or a bomb?

[TomaTito]

There was this thing (originally an april fools' joke) at E3 which could work for the VC,
but the device already supports the original gameboy cartridges.

http://gizmodo.com/the-case-that-turns-your-smartphone-into-a-game-boy-was-1782082179
http://hyperkinlab.com/smartboy-development-kit/