Expect Windows 8 to RTM between July 12th and July 21st.Of course the one date missing is the actual general availability release date which is still expected for the October timeframe. Certain developers have received builds early to help prepare their apps for RTM.

Windows 8 almost entirely relies on its Metro initiative.

The success or failure of the Windows 8 app marketplace will be the deciding factor in the future of the Windows platform. Whichever markets see success with Windows 8 will likely be the focus of future versions of the operating system. If it is all-around unsuccessful then you can probably expect Microsoft to go into a fit of anxiety and do something even more drastic for the future — if Windows would even have one.

You know the theory about broken Windows…

Paul Thurrott on his Supersite for Windows reported on a Building Windows 8 blog post from Steven Sinofsky. As long time viewers of this site might remember: we have experienced three public releases of Windows 8 to help developers make Metro style apps. Microsoft has also stated that a few high profile developers have received Windows RT tablets to help ensure compatibility on the new platform.

It turns out that they have also received several extra builds. Developers close to Microsoft have just received their 8th build — if you include the three public ones — to help developers prepare their applications for RTM sometime between July 12th and July 21st.

At least developers will have a few months to put some polish on their applications before the actual Windows 8 release still expected sometime in October.