Blackberry10 and Arduino: how to make them friends

This is an image and a video showing the arduino interacting with my dev alpha C (like a blackberry Q10):

You can find the Bluetooth Cascades app here: https://github.com/blackberry/Cascades-Samples/tree/master/bluetoothsppchat

For arduino just follow the previous tutorial: http://pestohacks.blogspot.it/2013/05/arduino-bluetooth-rn-42-recently-ive.html