BitFlipper said:

1.6

The number of days between press conferences if MS was to hold one every time they sold 1 million copies of Windows 7.

It isn't a fair to compare sales of a physical device that people buy because it's desireable to sales of software pre-loaded on computers that people buy without really having much say in the matter.

 

I'd much prefer to see the results of a neutral un-biased customer satisfaction survey instead.