So in my search for an upgrade my standard Audi Concert radio with no Sat Nav I found this.
w w w .rsnav.com
They are currently selling the LHD version but need a minimum of 10 orders before making a RHD version.
You can find a development thread here with a couple of Youtube videos.
B8/8.5 Native Android 4.1.1 intergration
So if you are interested please register your interest at w w w .rsnav.com, currently I am only #3.:aargh4: