How soon after Windows is released will the OEM versions be released?

[JMapleton]

When Vista was released it was released at retail price, very high like 300 bucks for ultimate. Now you can buy OEM builder editions of ultimate for 179.

How soon will OEM versions of Windows be released? I'm building a Windows 7/Westmere system.

 

[fr]

I think OEM may be out a few weeks before retail.