> Messina envisions a potential one-time permission-based system where you could grant a friend access to Molly just for specific purposes and a set period of time, like finding a restaurant for tonight.

Now that's a cool idea. I've always thought Foursquare would crack matchmaking two people with a dinner place they haven't tried before. It'd be interesting to see if Molly's solution will work in other verticals like... recommending books, exercise classes, or something like that.