Yes, we use it at work.
Includes most libraries in the IDE?
you mean Visual Studio 2010 IDE?
Includes most libraries in the IDE:
No, since most of the libraries change on a fairly regular basis but does include jQuery. It's easy enough to add the once you are using.
you mean Visual Studio 2010 IDE:
Not really sure what you are asking here.
I've never used Eclipse and again, I have no idea what you are asking.
Just out of curiosity, did you down vote my post, and if so why?