The REST in MVC article I kept banging on about was http://msdn.microsoft.com/en-us/magazine/dd943053.aspx

There’s also http://kohari.org/2009/08/10/siesta-painless-rest-via-asp-net-mvc/ which is interesting as an example, but should be read along with the ensuing discussion between Nate and Sebastien in terms of how to assess it compared to a real framework

Another article/demo I’ll be paging in when required is http://blog.wekeroad.com/blog/aspnet-mvc-using-restful-architecture/