Oink, the service started by Kevin Rose's new incubator, Milk, is now live. You can download the companion app, Oink Builder, on the App Store now for free. Oink allows you to rank and rate the things around you. Unlike other services, like Yelp, that have you rate places, Oink is about rating the things inside the places, rather than the places themselves. Hit the video above to see what we mean.