For those who have a 3DS and have downloaded the free program you will know that the swapnote program is basically just an email service for the 3DS that allows you to send pictures, written notes, sound clips and so on. A few have used it to make it into an D&D type RPG. http://www.cinemablend.com/games/3DS-Swapnote-App-Becomes-RPG-38232.html
This guys is pretty simple but it seems to be a good idea and pretty simple to do.
Just thought I'd share. What do you all think?