http://www.neowin.net/news/microsoft-on-installing-windows-8-to-30000-employees
Microsoft on installing Windows 8 to 30,000 employees
Windows 8 may technically be at its RTM stage, but there is still the matter of actually installing the new Windows operating system. As you might expect, Microsoft has already been installing the OS on its own PCs.
Microsoft calls this early adoption process "dogfood" because, " ... we’re eating our own dogfood."
Yes, that's all well and good, but what did you actually LEARN about Windows 8?
They learned that they forgot the Start button...