Indeed. This is exactly why they're unlikely go as "open" as, e.g. Windows with OS X, or Android with iOS. Once they start damaging the "premium" experience the

Indeed. This is exactly why they're unlikely go as "open" as, e.g. Windows with OS X, or Android with iOS. Once they start damaging the "premium" experience they're selling, they lose a key differentiator and will, eventually, slide off into nothing.