It's a new app that is coming to the app store soon, but you can download it from the website. It's basically a way for you to either ask friends/neighbors/random people you add to the accepted list to do you favors (grab some groceries, pick up food...) and you pay them straight from the app. It also works in the reverse order obviously, you just check in (ex: I'm in town right now and heading back home if anyone needs anything!) and can get requests. A pretty cool idea but I could see it turning into a shit show. Could be a good way to make money if you're dedicated and it catches on.