also from the user side, presumably you could play Android games, buying them at Android prices instead of Windows prices (or playing them for free, the dark unfortunate secret of Android).
99 cent tetris vs. $40 Far Cry yay
Most sane people do not feel safe with roaming machine-gun-toting civilians in any venue neither.
OTOH, there hasn't been a single crime committed with a lawfully-owned civilian machine gun (or other automatic firearm) since 1934.
There has not been a single crime committed with a lawfully-owned civilian nuclear device either.
Any sufficiently advanced technology is indistinguishable from magic. -- Arthur C. Clarke