That's a really cool feature - glad I found out about it!
I have a new radio on order since mine froze again for the 2nd time, this time however turning the car off and restarting it didn't work. Luckily after a few hours break it was ok and spit the Nav CD back out. I'll also be having them look at the obnoxious whistle my car has when the top is up, and the rattle coming from the rear at slow speeds while turning (like in a parking lot). You'd think they'd have all of these little kinks worked out by now!

Regardless, I still adore my car!