Over the last couple of years we've been doing a few WebGL demos and projects, and it's been great fun. So we're really happy to see that WebGL is finally coming to iOS. We love the web!
We did some early tests, and it's looking very promising. Here's a video of our demo/game Kid Disco, running on an iPad Air in Safari. This demo was meant to run on Desktops and we haven't done any optimization for mobile / devices more than add the touch controls. So it's pretty cool that it runs!