From the pics it looks like you have the GPS screen facing up towards the window when it is folded down. If this is the case, are you worried about the effects of the direct sun / heat on the screen when not in use? I had a phone that I left on the dash of my truck all day in the Texas heat, and when I came back to it, the LCD was not happy. May not be an issue with current gen LCDs. (This happened to me a long time ago)
EDIT: Nvmd, ignore all that. I see now that you have the screen set to face down when not in use. Good job
