I'll be very quick and to the point
Calibri Font Creation
Calibri Font was created in year 2004 , but it was not shipped in any Microsoft Product till the year 2007.
Calibri - Version
The first version of Calibri was 0.90 it was created in 2004 but shipped with Microsoft Windows Vista and Microsoft Office 2007
Authentic Official Sources
If someone shows you an image and not give you a link to the source do not go for it .. the same goes for WikiPedia , if you open Calibri Wikiepedia
and view its Revisions
you will see so many edits that the page is now locked, some changing the creating date to 2006,2005 and 2004. I will be using Microsoft Official Website as reference here (Authentic Enough ?)
Open Calibri - Microsoft Typography
altough version 0.90 was created in 2004 , scroll down and see which Microsoft Products supported this font type, and the earliest is Windows Vista
and Microsoft Office 2007
Microsoft Office Support of Calibri Font
Here I will again use an article from Microsoft Official Website which is about : Fonts that ship with different versions of Office
, if you open this link and search for calibri you will not be able to find it in Microsoft Office 2003 , rather it is available in Microsoft Office 2007
So its very simple and clear to say that Calibri Font was available for general public not before year 2007. All those who talk about Beta and Alpha releases please first ask them to share a source which quotes : the exact Beta version with which this font was released ...