Today, at the Microsoft Worldwide Partner Conference, Microsoft has announced the availability date for Windows 8 (client) and Windows Server 2012 (server).
- RTM date: first week of August
- Windows Server 2012 General Availability date: september
- Windows 8 General Availability date: end of October
The general availability is later than RTM as manufacturers need time to integrate Windows 8 on their computer.
More details here http://windowsteamblog.com/windows/b/bloggingwindows/archive/2012/07/09/upcoming-windows-milestones-shared-with-partners-at-wpc.aspx and http://blogs.technet.com/b/windowsserver/archive/2012/07/09/windows-server-2012-final-release-timing.aspx