Check out my new app, Planning Poker for BlackBerry 10. It's created using Qt and Cascades/QML. The source code, which is released under the Apache License v2.0, is available from the project page on Bitbucket.
The application features a clean, simple and Ad-free user interface for your agile planning sessions. Simply swipe between cards or pinch to pick one fast. Double tap to hide/unhide. Supports light and dark card theme.