Now supports Windows Phone 8.
Supports .NET 3.5, .NET 4.0, Silverlight 4.0, Windows Phone 7.1, Windows Phone 8, Client Profile, and Windows 8.
100% Twitter API coverage. Now supports Twitter API v1.1!LINQ to Twitter Samples
contains example code for using LINQ to Twitter with various .NET technologies. Downloadable source code also has C# samples in the LinqToTwitterDemo project and VB samples in the LinqToTwitterDemoVB project.
Also on NuGet