It sort of feels like everyone is getting an app store these days. The latest is Mplayit, who have created a Facebook-based app store for BlackBerry, iPhone as well as generally “mobile”. The app store gets users to try before they buy and hopes they will share apps among friends on Facebook. It should be an interesting way for new users to discover BlackBerry apps. The major downside I’m seeing is that they don’t have nearly as big of a catalog as the major players, and I don’t see anything about software bundles, deals of the day or promotions.