[dba-SQLServer] SSRS 2008R2

I have just done the basic R2 installation, but I just read a piece (
http://www.sqlservercentral.com/articles/SQL+Server+2008/74856/ ) that says
that the only OSs upon which I can install SSRS SQL 2008 R2 are:

*Server operating systems include:*

   - Windows Server 2003.
   - Windows Small Business Server 2003.
   - Windows 2000 Server.

*Workstation operating systems include:*

   - Windows XP Professional.
   - Windows 2000 Workstation.


Is this true? What about Win7 Ultimate? No dice? Seems shocking to say the
least. Maybe this article is stale?

-- 
Arthur
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Prediction is difficult, especially of the future.
  -- Niels Bohr