http://itunes.apple.com/us/app/air-display/id368158927?mt=8
I was dreaming of having total ipad integration with my avic z140bt as a dual screen type thing. What if the avic ran navigation while the ipad did facebook/ ipod stuff and you had 2 screens going. Or having it as a real 2nd monitor and having the navigation and app radio mode apps pan over onto the ipad screen?
just an idea
also, here's a really cool way to mount an ipad into a tahoe dash. Just sayin'