I really like this UI design, great job; I feel it eliminates the issues that exist in Hildon at the moment and would greatly improve usability. I have a very limited understanding of coding myself, but to be honest I'd be surprised if this would even be possible in Fremantle. What's perhaps a better idea is to have a chat to the guys making Cordia, and see what they think. They definitely know how to code, and if they agree that this represents a legitimate improvement over the default Hildon UI then they might help you out. Couldn't hurt to ask, at any rate.