Sort of a neat tech demo, but two main issues with it:

1) In the real world, you're essentially never going to have a desktop app with the same artwork/assets as a mobile app. You're going to have a high res version for the desktop (designed with mouse and keyboard controls in mind) and a lower res version for mobile (designed with touch screen controls in mind).

2) Reversi is an incredibly oversimplified example.

Still, a neat tech demo.