Prototype Graphic Framework This is very cool... it's too bad the library doesn't fully support canvas, but I gather that'll bring up the rear. For now, it works great in an SVG-enabled browser (as well as whatever it is that Microsoft uses for IE). For Mac users, this means you can't use Safari until Apple updates it in Leopard. For now, if you want to use Safari, you need to install and run the WebKit nightly build. Note: This is the same developer who gaves us the marvelous windowing library for Prototype, which I've used extensively here on Mars.