[deanhills]

Do you think Windows OS will be free with time ? Something like Android with paid services integrated to it. They are already offering Ubuntu inside Windows to woo developers.

That is not such a farfetched idea.  As long as Microsoft can make sure they get your credit card and personal contact information however.  Microsoft will always make sure there is something it it for them.  So they will pretend they're free but at the same time make you pay for services.  They may even make one pay for updates like some software companies are doing.  Like they let you buy their software license for a year, and then if one wants the updates, one pays X dollars for the next year, or one goes without the updates.