I think this is one of the great things about RR, anyone can build their own skins for what they consider ideal, different things work for different people.
The base skin is an example that probably works very well for it's creators and with all the work going on to add functionality, making new base skins for old features is probably not a priority. What would most people rather see, a new main menu setup or dual app on one skin or auto day/night skin changing.
I have started building a full skin with the first section released as Streets.skin for Microsoft Streets and Trips. I am currently working to embed Audible books now sow a main screen still may be a ways off. But on what I have laid out so far I have the back/exit button in the same place on every screen, and audio controls are brought up on another menu (see Working skin for MS Streets and Trips embedded in RR for an example) but work has been slow and I am still killing myself over what color amber my car lighting is.
Just my thoughts...