Really like the skin overall - great job. Here are my personal nits:
The rounded sides take up a lot of space, and squish the button text on the outside. I know this is sort of how MMI looks, but from a functional/usability point of view, it's not optimal. Any chance you'll do a version with straight sides?
The button bar at the bottom needs to be bigger, and the controls should be grouped logically (mute should be with volume buttons, etc.)
No clock :(
I'd also like to see the text in red, with highlights in white
GREAT JOB!!! You clearly have skills.