One of the coolest things about Silverlight is that it is using languages from the .NET platform such as C# and Visual Basic. While we all know VB is crap , C# is quite a powerful language especially with its vast amounts of cool libraries in which you can do all sorts of neat stuff. One of these libraries is the ParallelFX by Microsoft which lets you make your code take advantage of multiple cores on the clients computer. But what does this have to do with silverlight, well you can make your silverlight application use C# and have C# take advantage of the cores making the application much fast. Also you can use PLINQ which is a parallel implementation of LINQ .

On a side note if your looking for a solution like LINQ on the flash platform, check out my previous post on GAIQL which is essentially a PLINQ implementation in actionscript