http://www.engadget.com/2010/04/27/windows-7-hits-100-million-licenses-mark-becomes-microsofts-fa/
"It's hardly been a secret that Windows 7 was on track to become Microsoft's fastest-selling operating system, but the company has just now finally made that designation official, and also revealed that the OS has crossed the magical 100 million licenses sold mark in the process. In other words, that translates to Windows 7 being installed on one in ten of the world's PCs just six months after it launched, which is pretty darn impressive any way you slice it -- or punch it, as the case may be."
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Impressive, good thing I was able to get in on the pre-order student offer for Windows 7. Now I just need some money to upgrade or build a new tower and I can start using Windows 7 Professional more.