ok WebGL, I'll bite
I've had a look at the 3 Dreams of black site www.ro.me which includes a bunch of 3d content in your browser without the flash plugin. It uses HTML5 and WebGL. Do check out the technology part, or got right there: http://www.ro.me/tech/. Enjoyed playing with the morphing of some of the animals. Pretty nifty.
half spider, half buffalo

half bear, half dog

But, before Steve Jobs and co. get excited abut the latest "flash killer", mobile device users can expect to see a message saying that their browser doesn't support WebGL.
