Three Tiles

This is a sample implementation of tile-based puzzle game. It heavily uses (and relies on) CSS transitions, which is available only on webkit-based browsers, such as Safari/mobile-Safari/Chromium at this moment.

This type of applications can be implemented using canvas as well, but I much prefer this approach, because it allows the browser to take advantage of GPU to perform animations.

As far as I can tell, iPhone 3GS with iPhone OS 3.1 can easily handle those animations, while I see some visual issues under iPhone 3G with OS 3.0.