Perhaps not appropriate for your app, but who knows, maybe? But this is my favorite UI that I've seen in a very long time. Just click on any of the content boxes.
Text.
Just text.
At worst, it would have taken a PNG to produce the same thing, but they decided to create an entire Flash app devoted to displaying some text.
e.g., Instead of: <td id="flash_banner"> </td>
they should do this: <td id="flash_banner">project: The Total Library</td> (They use JavaScript to replace that <td> element with the Flash banner)
Typekit, Fontdeck, etc. are helping to fix this problem, but it takes time.