The SDK contains source code for BlackBerry platform.
The guilde for SDK integration is available on Pushwoosh website:
For Blackberry 5-7:
http://www.pushwoosh.com/programming-push-notification/blackberry/blackberry-5-7/
Native (Java):
http://www.pushwoosh.com/programming-push-notification/blackberry/blackberry-5-7/blackberry-push-notification-sdk-configuration-guide/
HTML5:
http://www.pushwoosh.com/programming-push-notification/blackberry/blackberry-5-7/blackberry-html5-webworks-push-notification-sdk/
For Blackberry 10:
HTML5:
http://www.pushwoosh.com/programming-push-notification/blackberry/blackberry-10/blackberry-10-webworks-2-0/
The sample project is available here (Java):
https://github.com/shaders/pushwoosh-sdk-samples/tree/master/BlackBerry
Pushwoosh team
http://www.pushwoosh.com