Looks like a great idea! I'm already using the Capture One remote capture (which requires a wifi laptop tethered to the camera) so the Canon implementation looks miles better.
I note in the screen grabs that the 7D is mentioned, is this a function that can work with the WFT grip? What about a T3i with Eye-Fi card?
Been looking for a less clumsy way of doing things and this app looks great! Not going to buy a 6D though.