Facebook-based mobile app directory Mplayit is launching a new way to discover mobile apps today: App Gurus. Thew new feature draws recommendations from experts in the mobile space. The experts, which include blogs and individuals, will rate and comment on apps in Mplayit’s catalogs. Last year, Mplayit launched its Facebook app that allows users to discover, share and recommend a variety of mobile apps back in November and covers apps available for the iPhone, Android, BlackBerry and Mobile (Java) devices. Mplayit’s directory of apps includes a dedicated page for each app 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 various app markets, including Apple's App Store and the Android Market. Once you start clicking on various app and downloading apps, Mplayit will begin to recommend apps to you based on your behavior on the site.