Microsoft.Net.Http was released today as a stable NuGet package. Yep, that’s right: You can finally start using the portable HttpClient 2.1 in production!
This NuGet package makes a standard set of HttpClient APIs available across a wider array of platforms, including Windows Phone 7.5 and higher, .NET Framework 4.0 and higher, and Windows Store. This enables you to share more .NET code across these platforms.
Read more about it in the announcement to the .NET Blog.