Nice!! I've been planning on implementing the UT99 equivalent of QuakeLive at http://www.globalunreal.com for quite some time now. I've already made a new ping compensation mod, so all that's left is automating pretty much everything via the web. Although, I highly doubt I'll go 100% in the browser using WebGL. It'll most likely just be a wrapper that makes UT appear to be controlled by the browser when it's actually just running natively. This is all very cool stuff though. I could see it being quite powerful/useful in the future.