F# on Silverlight 4 is here!
Earlier this week we have released F# runtime for Silverlight 4 as part of Microsoft Silverlight 4 Tools for Visual Studio 2010 (this is a single download that contains everything you need to develop for Silverlight for under VS2010).
The recommended way to develop in F# for Silverlight is to write a front-end of your application in C# or VB, using the amazing UI authoring tools that are available for those languages in Visual Studio, and code your computations or data processing logic in F#. Brian has posted a nice walkthrough that explains how to do this in detail.
However, being an F# fan as I am, I like to write everything in F#! With F# succinctness and clarity, I find coding UI logic in F# a very pleasant and satisfying experience. There is one problem with it though - setting up a project for Silverlight application in F# is a bit of a pain; so I ended up writing a little Visual Studio template for F#-only (plus a bit of a XAML of course) Silverlight app: