That's basically what I have been thinking of... but the other way around.
These past few months have been very confusing for me, as several things happened:
1. They offer their entire eco-system on other OSs
2. They invest in the biggest android competitor a large amount of money for no apparent reason (cyanogenmod)
3. They create a ROM of their own OS to run on an Android phone (Mi4) for "testing"
4. They cut deals where they loose tremendous amount of money (Samsung royalties) without disclosing the details (everyone assumed it'd be offering MS services for their devices, but they are free and good anyway, so why not?)
I think it's pretty safe to say that the "blow your mind" bit is not android skin, or app, or new phone,
I think it's actually having a global ROM for several devices backed by companies and CM to allow either installing W10M or have each phone dual-boot to whatever OS you want, I just hope the OS will be polished enough to have people want to stay in it