Full Featured Spotify Client for BlackBerry 10
Written in: Qt, QML, C/C++, Javascript, QXMPP Library, BlackBerry Cascades SDK, JSON, XML.
Others: Parse.com Web Panel/System for Controlling Users and the App: PRO Exemption, Announcements, Updates, etc...
SpotifyAPI
Video Demo: https://www.youtube.com/watch?v=xWN-xkS-sbY