A good skin can let driver do changes during driving quickly and give usefull information. I would like to have:
1. show next cross street name
2. Quick access to favorite list. Allor some favorite are listed by small button with short discription and users can select how many buttons will be listed.
3. Quick on/off for sound.
4. Quick 2D/3D switch
5. All setting are WYSIWYG("What You See Is What You Get")
6. All buttons position can be customized.