There are a host of directories of iPhone apps on the web as well as applications that make personalized recommendations of apps, such as Chorus, that might catch your fancy. Mplayit enters this space hoping to combine these two ambitions into one, comprehensive Facebook app. Mplayit's directory of iPhone and mobile apps includes all 100,000 plus iPhone apps and a smattering of other mobile app as well. Each app has a dedicated page where Mplayit will post videos of the app (created either by the developer or pulled from YouTube), a detailed description of the app and reviews. You can also click to buy the app from Apple's App Store (from which Mplayit receives a affiliate fee).