PowerPoint is a great tool for creating and manipulating mock-ups. And PPT 2007's drawing and style tools make it possible to complete entire projects without needing outside resources. As example, this application interface mockup was done completely with PowerPoint (eg. no photoshop, illustrator, or other external application).

The full project walked through several usage scenarios and was setup with trigger animations to allow the presenter to interact with the application to demonstrate the information flow.

- Troy @ TLC