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.
2014 M6 Convertible Citrin Black/Champagne - 6MT, Carbon Ceramic Brakes, Exec, B&O, Night Vision, Driver Assist
2013 750i Mineral White
2011 750i Jet Black
2007 750i Monaco Blue