I do all of those as well (ASP.NET, MS AJAX Toolkit, jQuery, IE6 and HTML/CSS/Javascript) yet mine is that I have no interest in learning Silverlight for the sa

I do all of those as well (ASP.NET, MS AJAX Toolkit, jQuery, IE6 and HTML/CSS/Javascript) yet mine is that I have no interest in learning Silverlight for the same reason that I have no desire to learn Flash. I think a huge failure of Silverlight is MSFT's thinking that, "Well if we can just get half of all the millions of ASP.NET programmers to start using it, it'll be h-u-g-e!" But as an ASP.NET developer, I don't think of myself as someone who would develop Silverlight. And there's no way I want to learn a new, has-the-potential-to-be-dropped technology right now what with VS 2005, VS2008, VS2010, VS2012 and so forth (i.e. there's too much material too quickly).