On Scotts Digital Community (http://scottsdigitalcommunity.blogspot.ca/), a user posted a question that I wanted to share with the AEM community.
[img]question.png[/img]
A new community article has just been posted to help shed light on this subject. That is, creating a CQ component that uses Dialogs, support image drag and drop, and hooks into the CQ Content Finder. See http://scottsdigitalcommunity.blogspot.ca/2013/08/creating-cq-widget-that-supports-image.html.