Apparently video games can save the world...

I was listening to an episode of the Guardian's Tech Weekly podcast last night and the final item was an interview with a games designer, Jane McGonigal, who seems to believe genuinely that the key to "saving the planet" lies with video games. I'm personally very averse to her whole perspective: it creeps me out, actually. But she is getting a lot of exposure, including a slot earlier this year on the TED Talk circuit. Whether you watch the video or listen to the last part of the podcast, I'd be really interested to hear your views on all this... especially if you can give me some reasons to tone down my cynicism and distaste for the views expressed by McGonigal!