Hello.

I recently discovered a cool trick in WebKit that lets you use a canvas element as a background image, which opens up a ton of creative possibilities. It's a powerful feature, allowing for dynamic, programmatic manipulation of background images. I've included a simple demo showing how to draw a square on a div's background, but imagine the possibilities for games or complex animations! While currently WebKit-specific, I hope other browsers will adopt it soon. More demos to follow!

I've started an open-source parallax scrolling component project on CodePlex to help game developers create repeating scrolling backgrounds for their XNA games. It's still in early stages, but currently includes a 2D camera, layer oscillators, scrolling, and clipping functionality. Check out the XNAParalax Component project on CodePlex and provide feedback!