On that note, customer satisfaction is inherently easier to keep high when you completely control the closed ecosystem. When you only have a select few devices your software can run on, it's much easier to test any changes or a new version you have against them. When you have to deal with thousand, possibly millions of hardware configurations that you need to support, that becomes nearly impossible. Things are destined to fall through the cracks, which reduces average customer satisfaction.

That said, I still think OSX is a better overall OS. But you have to take all the variables into consideration when you discuss things like customer happiness.