Windows 7 and the amount of developers of Linux

The marker Israel publishes a [translated article](http://it.themarker.com/tmit/article/4273) from IDG were they mention that Microsoft has about 2000 people working on the next generation of Windows, 500 people are in charge of the 2000 developers. And my guess is that Microsoft will have triple the amount of people selling (or trying to sell that operating system).