I'm currently toying around with Max 6, and so far, the dict-objects seem promising. But the dict.view object is not what it could be:
It doesn't have outputs, so it's really for displaying only. Why can't it be clickable and report the value that is clicked on out an outlet? That way, it can be used as a collapsible tree view.
Even better, why not implement editing and selection functionality so that you can make multiple selections with shift and cmd/ctrl, and edit the contents in-line as you would change the name of a file in Windows Explorer or OS X Finder, or jit.cellblock for that matter.
Maybe even add the ability to put checkboxes before each item, so you can toggle like you can in umenu.
Max6 looks very promising, I understand that it can't be everyone's dream but I wanted to give my feedback anyway, to help make it even better.