It is a mirror of the screen, but the phone itself has gone into Duplo mode if you notice...
There are 3 different types of technology apparently incorporated by VW in the MIB 2 - MirrorLink, Android Auto and Apple Car Play.
Each system has its own foibles and potential advantages.
For example, Android Auto will only work with some phones, Apple Car Play is only for Iphones and also doesn't yet support anything but a wired connection and so on.
I think the advance forward is great, but I think you are going to be quite disappointed with just how little progress they've actually made.
Give it another 5 years and the MIB 4 on the Golf Mk9...