Our Flex "My To-Do List" tutorial has been published in the June issue of the ColdFusion Developer's Journal (and we made the front page!). It can be read online and the source can be found at the project page.
Although simple, we tried to be as complete as possible for "your first Flex app". It shows how to use the CF wizards, use events, create custom components and use the RemoteObject tag to send and retrieve data from the server.