If this is a success, it could revolutionize online gameplay. All the online games that are currently out now (excluding the mmos) use P2P, but no one really notices it. This could show how P2P can be turned into an aspect of gameplay, and, if successful, could possibly give a nice push for online play...
Of course, that probably won't happen.
If only Nintendo did something like this with their games... like Pokemon Colosseum, or Mario Kart, or Mario Golf, or F-zero, or Super Smash Brothers.
As NintendoFan said: Genius. Pure genius.