My question is how that 89.5% is measured and how the number is remotely accurate? I'm all for simplifying the topic down to technical attributes in a single category so you need only clarify the category you are considering as within scope.

Or you can suggest how the market share is to be accurately measured since no fan camp can provide accurate figures publicly (MS and Apple know there own figures internally but those are not the numbers advertised now are they).

If you've a valid point then don't give up. Supported and clarify it so that us lesser-than-thou can learn too. Trust me, I'm a fast learner and welcome being wrong provided I'm allowed to understand how I'm wrong.