Installed the Blackberry beta and all the requirements and ready to build straight away. Testing on an actual Z10 phone.
The only odd thing I've come across so far is in the GUILayout TextField Playmaker action. I needed a Textfield to input a players name, calling this action within Unity & Playmaker on my iMac worked as expected, with an alphanumeric text field displayed ready for text input.
Testing the same code on the device brought up the Blackberry's numeric keypad, so not possible to input alphanumeric names.
(Calling textField from Unity using a script brought the actual alphanumeric keypad as needed on the device)