LINQ or DIE
I just read a fantastic quote about LINQ from the book Pro LINQ: Language Integrated Query in C# 2008
I prefer to think of LINQ as a data iteration engine, but perhaps Microsoft didn’t want a technology named DIE.
I think they already built the technology for such a product, and put it in Vista. 
It’s a great book. The first LINQ book I’ve found with a really detailed explanation of LINQ-to-SQL and the SQLMetal generation tool.
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