It has been confirmed that Windows 7 will be just called Windows 7. Simple, short and sweet.

And, as you probably know, since we began development of the next version of the Windows client operating system we have been referring to it by a codename, “Windows 7.” But now is a good time to announce that we’ve decided to officially call the next version of Windows, “Windows 7.”

While I know there have been a few cases at Microsoft when the codename of a product was used for the final release, I am pretty sure that this is a first for Windows. You might wonder about the decision.

The decision to use the name Windows 7 is about simplicity. Over the years, we have taken different approaches to naming Windows. We’ve used version numbers like Windows 3.11, or dates like Windows 98, or “aspirational” monikers like Windows XP or Windows Vista. And since we do not ship new versions of Windows every year, using a date did not make sense. Likewise, coming up with an all-new “aspirational” name does not do justice to what we are trying to achieve, which is to stay firmly rooted in our aspirations for Windows Vista, while evolving and refining the substantial investments in platform technology in Windows Vista into the next generation of Windows.

Simply put, this is the seventh release of Windows, so therefore “Windows 7” just makes sense.

We are very excited about the opportunity to tell you more about Windows 7 in the coming weeks, and show you how we have continued to build on investments begun in Windows Vista to deliver on the next release of the Windows operating system.

Source: Windows Vista Team Blog