Hearing that Microsoft is now including it in their IDE is pretty exciting. This means that IntelliSense and debugging (while possible with some great workarounds from the jQuery community) will most likely eventually be fully supported for jQuery. I’ve worked with lots of development environments and Visual Studio is by far one of the best IDE’s around.
Probably even more exciting is that this furthers the strategy that MS is really interested in working with developers. Some of my friends are probably tired of me bashing the old-school “Microsoft Way”. Seeing the real encouragement of MS through employees like Scott Gu, Phil Haack and others on projects like MVC and such really make it apparent that MS is offering alternatives for developers who want the ability to code using modern standards.