No dancer should ever leave home without a good dose of inspiration. We've found one that's kind of awesome: The free New York City Ballet iPhone app. It’s constantly updated with fun new pictures of the dancers—both on stage and off—and has a Twitter section that shows a feed of tweets from company members. Best of all, it contains links to top NYCB video clips with dancers explaining their approaches to roles and dishing about what it’s actually like behind the scenes. Find it in the App Store.