May be i am late on this post but I will suggest to take it on in your presentation...in a very briefly way. Also sometimes its funny to present in a very funny way. The brain works better. Understands better.
Why PureMVC?
Where to use PureMVC?
Flavors of PureMVC.
Benefits.
And then
The sexy ApplicationFacade.
The best friends are Views and Mediators. Responsabilities.
Events are not Notifications. Notifications are not Events.
Mom look with No..Commands. This is not true.I like Commands.
Ladies and Gentleman, Proxy the wizard

Hope it helps..
CHeers and good luck