As a UI and graphics designer myself, I can appreciate the work it takes for a coder to take that interface and make it into a functioning app. There is a symbiotic relationship of UI and code that makes up a great app.
If you are a app designer yourself, you may be interested in RIM's latest contest called, Stump the Devs:
How do I stump someone and who am I stumping? Provide us with a design or mock-up that you think would be difficult to be implemented using our Cascades™ UI framework. The Cascades tools development team will try to implement your submission in a flexible manner that involves no hardcoding of values and that is flexible enough to handle multiple screen resolutions and multiple form factors.