I'm after narrowing it down to the fitness aspect of sports, and peoples lack of motivation when it comes to fitness interests me.
To make a multimedia learning environment you need these four qualities. (Malene & Lepper 1987)
I'm researching any new motivational methods combining both a Facebook app and maybe an iPhone fitness app. By doing some sort of fitness measured by the iphone app would allow the user be rewarded in the Facebook app allowing them to compete with friends.
It would either be an arbitrary iphone app that people could be exercising even if trying to cheat to get rewarded or else maybe an app measuring how much physical exercise some one is after doing and reward them on that basis.