I've recently been working on Intellisense documentation for MooTools. You can find it here: http://code.google.com/p/mootoolsintellisense/
This is not 100% finished yet, I need to finish adding in notes for some of the latter classes like Fx, Request etc but most of the methods should be listed, just no descriptions. Hope to get a full version up over the next week or so. Have a look at the wiki tab for more info / how to use. Any feedback welcome, particularly if you can think of a good way to display all the different options available when defining a new instance, or all the available getters/setters....
