Today, Parallel Programming team released 2nd CTP for Parallel Extensions to .NET Framework 3.5. Major features in this CTP are declarative parallelist (LINQ-to-Object, LINQ-to-XML), parallel tasks and imperative data and, the most important (for me) – user mode work stealing scheduler. It makes very efficient use of parallel hardware. Additional information regarding this release can be found in team blog. Also, please, report bugs to Connect in order to help those guys to produce better product.