Currently under development for the 3DS and PS Vita. Might recieve a port to the PSP, Wii U, Wii, and Nintendo Switch. Could, much later, recieve a port to PC and other platforms.
Unsure as to how to handle further development of this game, I might give it a Flash game type of feel.
There will be a LOT of updates and prereleases for this game. Updates will be frequent.