Greetings! What market share? Microsoft mainly had desktops, laptops and small servers. Those are still Microsoft dominated. Where Apple has grown was in phones and tablets, a previous small market that Microsoft neglected for years. Not the same approach. Apple has different OSes for dfferent devices. And they did. They removed user choice. Windows 8 is still Windows. For some tasks there isnt really an alternative. If Microsoft keeps Metro going for long enough time it will become the norm. Just like the ribbon is now for MSO. Early 20's and younger users dont know how to work in any other Office suite. In 10 years time Metro-style will have disappeared. You must try it. The Metro-stuff cant be "read", you must experience it and find out if can\want to work with it in a KB+M environment.