I'm going to go out on a limb and do a little deductive reasoning here. According to a video clip of an actual Microsoft press event, they stated that the Start Menu (they showed it off) was coming to Windows 8.1 users and that it would be a free upgrade. A few weeks back, Microsoft said that this Start Menu would NOT be coming to Windows 8.x now and instead would be part of Windows Threshold or Windows 9 or whatever you want to call it. If Microsoft said it was free (on record), and it's free for Windows 8.1 users - but it's not coming to Windows 8.x - then Windows 9 must be a free upgrade? Here's hoping. With that in mind, it really does make sense and Windows 8 has a slower install rate that Windows Vista - and we all know how that turned out.