Mario--
It is the OEM version in the same vein as these offers:
http://www.newegg.com/Product/Product.asp?Item=N82E16832116202
For some OEM context from MSFT's point of view:
Microsoft Answers 'Vista OEM' Questions
January 29, 2007
http://www.extremetech.com/print_article2/0,1217,a=199786,00.asp
and to qualify for the Family Pack you need to do this and MSFT hasn't
posted more specific detail to date. A search for family pack on their main
vista site yields no more detail nor does their Press Pass release, but hey
give them six months after Vista is public--they're a very slow company and
as Ballmer told the NY Times "we keep coming back" eventually, and maybe:
http://blogs.zdnet.com/microsoft/?p=201
"In order to qualify for the so-called "Family Pack" promotion, customers
will first need to purchase at retail a copy of Vista Ultimate, which
carries an estimated retail price of $399 U.S. The deal will not be offered
to those who purchase Ultimate preloaded on a new PC, sources said; it will
be for customers buying and/or upgrading via retail channels only.
Sources close to Microsoft were sketchy about some of the particulars. The
exact price of the additional copies isn't clear: Some believe it will be
$49.95 per copy; others, $99.95. Vista Home Premium's current estimated
retail price is $239 per copy."
Microsoft officials did not respond to a request for comment on the Family
Pack promotion by the time this blog entry was published."
CH