Robert,
Yeah, I saw that and actually got a demo account with them. I was hoping somebody here had an idea how they developed that widget, though - it's one of the better I've seen. I think I might take a different tactic, though. I might set up my application so that when you click on a region in the bookmark widget, *another* bookmark widget pops open with names of the specific states within that region. I'm not sure how to do that yet, but I'm hoping I'll be able to learn a bit more when I attend ESRI's Flex API training next week.
If you have any advice on how to accomplish the "two bookmark widgets open at once" trick, Robert, I'd love to hear it. Thanks, as always, for taking time to respond to my posts.
Justin