Hmmm... it may be possible that big companies moves to win7 (last 32 bit) and leave win8 to normal customers, and may their next upgrade when win9 is ready.
Vista was major update, Win7 minor
Win8 will be major update, win9 minor (their version of tictoc...)
So win9 will be the polished version of their next new core, so it will be safer bet to big companies, but those who are really eager for leap, will test their new ideas in win8 a couple of years earlier than win9 will be available.