Yes I had the installer set it up to bypass the brake meaning DVDs can play all the time. Yes the finger circle and swipe motions work and are indeed very handy (excuse the pun)!
So far, it's very good and I'm happy with it. Mine has no Bluetooth; do you find that you use the Bluetooth and if so, what for? Am I missing out big time?

The iPhone compatibility seems to be through the cable so far as I can see...