Ellis Hamburger tests out the new Foursquare, which can help you find the best places to eat, drink, and hang out nearby. Foursquare 8.0 ditches check-ins but adds Tastes, a new way to to tell the app's recommendation engine about your favorite things. The next time you open the app, you might find that secret mac & cheese place is right down the block. Personalized recommendations are a lot easier said than done, however. Does the new Foursquare come through on its promise?