Microsoft decided to attack head on frameworks like EXTJS (sencha.com) and DOJO (supported by IBM) by developing its own jQuery plugins, and pairing them with ASP.NET MVC. This is currently being done under the radar, so not many people know about it. Such as news made me really excited as being in many ways a pioneer in building rich internet applications (RIA or ajax apps). I have been hacking .NET and single page AJAX apps for a few years now, and when I started, to many it seamed strange that I would take such an UI (XHTML) abusive framework, and pair it with jQuery. I was able to do so, by stripping ASP.NET off all the post backs and view states, so when MVC came about with it's clean approach, it seemed like exactly what I was waiting for to make my jQuery magic run perfect... and now seeing that this "marriage" of the two technologies got official blessing, and being pitched to big corporation as a perfect HTML5/RIA technology... I feel like a prophet. DOJO has become a similar player when it got endorsed by IBM (JAVA on the back end) and now jQuery is getting Microsoft endorsement... just have a feeling, there will be a lot of .NET MVC + jQuery OO JavaScript jobs out there in the coming years.