MS won't make a mistake of forcing people to adopt WIN7 otherwise the result would be same as IE - there are many, especially in the 3rd world countries where they are just looking for a reason to dump windows but they keep it because it came pre-installed - just 2 countries (china & india) can make windows dead in matter of years (if not months) if they try to force it ...

also who knows??, there are new guys (read Android, WebOS, OS-X) who MIGHT be waiting for the opportunity to jump in ... i dont know why but i feel that eventually google will enter the game by getting android from phones to netbook to notebook....!! if the brand like HTC starts making netbook/notebook then i won't be surprise if it comes pre-installed with android !!