From the horse's mouth: The next generation of Windows: Windows 10
Delivering Windows as a Service and a Free Upgrade to Windows 10
Today was a monumental day for us on the Windows team because we shared our desire to redefine the relationship we have with you – our customers. We announced that a free upgrade for Windows 10 will be made available to customers running Windows 7, Windows 8.1, and Windows Phone 8.1 who upgrade in the first year after launch.*
This is more than a one-time upgrade: once a Windows device is upgraded to Windows 10, we will continue to keep it current for the supported lifetime of the device – at no cost. With Windows 10, the experience will evolve and get even better over time. We’ll deliver new features when they’re ready, not waiting for the next major release...........(Read more in link above)
*Hardware and software requirements apply. No additional charge. Feature availability may vary by device. Some editions excluded. More details at http://www.windows.com.
The launch date hasn't been set...the word is that it will be launched in the Fall....Sept., Oct., Nov. or Dec.
Edited by buddy215, 22 January 2015 - 08:01 PM.