
Enterprise has been doing this forever.....no news here
I've been working with and for US Enterprise markets for most of my adult life. There is a three year life cycle (on average) for any Enterprise approved operating system. Most of the Enterprise markets have just recently (In the last year or so) started shifting from Vista to 7. There are usually tons of testing and specific security policies that go in effect. It's a LOT of work to get things approved, so once they do, they tend to be reluctant to change them right away. Most are probably already working on setting things up for Win8, but rest assured, it will be right around Fall of 2015 before they start deploying the OS within their respective departments.