My beamer pre-dates the BMW apps option, but when I have my iphone hooked up via the usb i can stream audio through it when I'm using a youtube playlist or the spotify application. Can also do it over bluetooth if I don't feel like hooking it up. The video doesn't stream though. I had the video in motion activated a while ago, so it'll play dvd's while i'm driving but i haven't yet seen a way to get video from my phone to the car display.
2015 Ford Expedition Limited
2014 M6 Convertible Individual Citrin Black
2013 750i Mineral White
2011 750i Jet Black
2007 750i Monaco Blue