Starting in 6.1, I've implemented jquery to handle the ajax requests for the docMan and article selectors. I realize that Joomla has its built in Mootools framework, but I've used jquery in the past and decided to go with that since its easier (for me at least -- so I don't have to relearn the mootolos framework).
Anyhow, we can really take advantage of jquery and other useful plugins, (especially their ui-framework) to really enhance the component's interface, and functionality.
What are your thoughts as far as the use of Jquery?