Comparing LINQ and its contemparies

For people who know both .Net and Java - this new MSDN article - Comparing LINQ and its contemporaries is a must read.

Summary: Project LINQ addresses object-relational mismatch problems by elevating relations and queries to first-class concepts within language semantics and library-based extensions. Project LINQ offers a degree of type safety and static type checking lacking in most, if not all, forms of object-to-relation persistence found in use today in managed runtime environments such as .NET, Java, or J2EE containers.