The open, royalty-free WebGL specification is administered by the Khronos Group, the same organization that manages OpenGL and the new OpenCL API for cross-platform and GPU vender-neutral general purpose computing on GPU hardware.
Being able to render rich 3D content on the web without a proprietary, opaque binary runtime plugin such as Adobe Flash or Microsoft's Silverlight means that any standards-based device can be targeted by web games developers, from a desktop web browser to a mobile device like the iPhone. The technology can also be used to animate complex navigation and data visualizations.
Earlier this summer, WebKit added support for CSS 3D transforms, which allow web developers to position page elements in a 3D space. Apple rapidly added support for that feature in iPhone 2.0 and Safari 4.0.
Support for WebGL's hardware accelerated 3D rendering is likely to be similarly exposed within desktop and mobile versions of Safari over the next few months, opening up new potential for increasingly sophisticated web apps and rich media content. A public release of WebGL is scheduled for the first half of 2010.
Google, Mozilla, Opera and various GPU hardware vendors have joined in on the industry consensus to deliver advanced 3D web graphics using open standards, building support behind the Khronos portfolio of technology specifications.