I don't recall the exact figures, but lets say Windows currently has 85% of the marketshare.

What percentage of Windows users use CS on a daily basis?
What percentage of Windows users play (non-browser based) games regularly?

I would be astonished if the two figures combined came to more than 20%.

Yes, the lack of such software is holding people back, but the vast majority aren't using linux because of ignorance or apathy.

"... Google appears to be gaining ground by making knockoffs of Microsoft products and giving them away."

O M G :S

http://nfm.id.au/projects/ienotwelcome/
Was originally called iefuckoff, but I changed it to be a little more subtle ;)