Earlier quoted context omitted.
I was going to say the same- I bet it would have been done long ago if, for example, MS thought they could get away with it. I'm curious as to how the law is going to interpret this in the future. The closed ecosystem of ios may be a bad (in my mind) precedent.
The time has come when Microsoft does think they can get away with it. All Metro apps on Windows 8 will have to go through their app store approval process.
If only this was the year of the Linux deskto... oh, nevermind.