Hi Graeme, are you aware of the licensing issues? See:
http://blogs.msdn.com/jensenh/archive/2006/11/21/licensing-the-2007-microsoft-office-user-interface.aspx and http://msdn2.microsoft.com/en-us/office/aa973809.aspx It seems that they changed their mind and now it's royalty free but you still have to sign the license, wich can change at any moment at Microsoft will. I wouldn't loose a minute implementing this thing, and if everybody does the same maybe they'll get the message and start behaving ;-)
