In a striking change of direction, I'm happy to announce that AdventureWorks is being deprecated and abandoned for SQL Server 2008 samples in favor of long-time favorite databases of simple-minded data modelers: Northwind and pubs.
Also, I can gleefully announce, in the spirit of oversimplification, that work is underway on ports of the Oracle sample schemas named:
The creatively-named Oracle sample schema IX "might" present a challenge for SQL Server; however, we're going to give it a college try... for April Fools' Day.
Seriously, though, one person out of billions of (conscious or unconscious) SQL Server users has formally asked us to [re]include Northwind and pubs in our Official Family of Sample Databases™:
Since nobody has voted for it (not even the original requestor), we can only assume that it was filed on Connect as an early April Fools' joke.
[For the record, I hate April Fools' Day, but I am trying to get into the spirit of the faux holiday.]