The Nokia Imaging and Big UI Wiki Competition 2013Q4 has just launched.
Compete by submitting wiki articles about the Nokia Imaging SDK 1.0, covering either C++ or C# API. If your article wins, you have the chance to win a Nokia Lumia 1520
Alternatively win by submitting the best feedback about the updated SDK. Feedback can cover the API, documentation, examples, performance, suggestions for improvement, bug reports etc. Feedback should be provided as individual posts in this forum with a "formatted title" - as discussed here. The best feedback can win a Lumia 925.