So I've decided to follow Heather's suggestion and split this thread. Now each app will have it's own thread, with reviews, comments and user positive or negative experiences.
This thread had the potential to get too long and obscure the diversity of car related apps for the iPad that it's out there already. So I think it will work better this way.
I have been looking for an ipad app that lets me have control of my music while im driving. the ones posted before are all good choices im using iCarGadget, basically the same concept you can choose weather album art is displayed or any image of your choice while still displaying the song name, current speed and the weather. i wish waze gps would integrate a similar system to their already amazing app but that may be asking a little too much for now