• CSS3 Transformations
• CSS3 Polaroids
• Starry Night in CSS3 – Scrolling Backgrounds
• Analogue Clock
• 3D Cube
• DJ Deck in CSS3 and jQuery
• jPong – Pong build in jQuery

(most of these work best in the latest browsers (Chrome, Safari 5, Firefox))

As you can see, you don’t have to limit yourself to building interactive animations in Flash that won’t work on iPhone/iPad, or having to build a platform-locked application (like an app on the app store). But remember:

“Similar to Flash, just because you can do it, doesn’t mean you always should.” @kuatofkuat

Finally, the guys who created jQuery (our lovable Javascript library!) have only gone and created jQuery Mobile, which will allow you to build a website – once – and it will work and look good on all mobile devices.

Check it out at http://jquerymobile.com/ and the demos http://jquerymobile.com/demos/1.0a1/ (try on any mobile device)