Other then the color (which hurts my eyes ;-), the design looks interesting. Seems there has been a lot of interest lately in developers making themes and thats a good thing. I think theme developers can make a few bucks if they have some really good themes, but not so sure it would make you rich.
I don't see a Search bar at the top so this must be for version 3.0.4x. Make sure you develop for 3.0.5 since that will be released any day now