BlackEco

Mainly the UI : you don't interact the same way with keyboard and mouse than with a touchscreen. Plus the UI is optimisez for smartphones/tablets' small screens.

And if not? (Seriously, I have serious doubts that the Edge campaign will be founded...)

So, if I understand right: if Ubuntu Edge isn't founded, UfA and its Android patches won't be released? :(

Why don't you release these additions in order to let everyone bake its own UfA-compliant ROM?

Actually UfA uses ARM apps. Most of Ubuntu apps have ARM versions/