In a fit of procrastination I wrote up an interactive S2 Mandelbrot set explorer to play with and grafted it onto my journal style.
Yes, it's all written in S2. Yes, it dynamically generates the Mandelbrot. If anyone's interested, I can release the style's source, though since it takes advantage of a couple of bugs in S2 I'm not sure the LJ devs would like that.
It's a little on the CPU intensive side, so if you get timeouts ("infinite loop" errors) reload the page or move farther away from the center.