…and is created in Flex, too :)
If you want to see something cool, I encourage you to take a look at this application: http://test.zuiprezi.com/. I loved it from the first time I saw it. There are probably many presentation apps out there, but this one has a nice and sexy feature: you can zoom-in or out in your presentation, as part of your script.
Let me explain better an interesting use case you can cover with this app. Suppose you have to present a complex concept. And you decide to go from a nice overview, to each component piece. Here comes this tool. You can create a big slide composed out of the small pieces, and then as you presenting, you just move in and out. I think this visual analogy can make your presentation better received and understand. I am planing to use it myself for a presentation, … to test these assumptions :D