Do you have proof of this, or can point to someone that has reverse engineered these operating systems and found actual backdoors? I don't mean vulnerabilities in the code, these are not proof of NSA pressure on the companies to create "backdoors", just mistakes made in coding and/or quality control.

I'd be very surprised if the NSA pressured either company into putting backdoors into their products, especially when those products can easily be reverse engineered and those backdoors can be found and exploited by almost anyone.

The NSA can, and most likely did force companies like Google and Microsoft to provide them with their SSL private keys so that the NSA can spy on all your encrypted traffic to Gmail and Hotmail. That could be done quite easily and wouldn't be likely to cause any collateral damage.