I come across that the other day. I wonder if you can just get the emulator only and run it with our B4A Apps?
I don't see why we can't load the B4A-Bridge on it and then push our app to it or I guess you don't even need to have the B4A-Bridge as I would think it would run just like the current emulators.
I think I will stick to B4A for Android development since I have been working with it for a while and the support from Erel (and the community) is fantastic and don't see Microsoft giving this type of service, plus Visual Studio costs a lot more then B4A.