Interesting Adam. You need to be clearer to your audience, who are presumably technical, what the product actually is.

If I read this correctly, you have refactored WebKit into an embeddable layout engine that can composite offscreen. It includes the javascript engine so it is able to render browser shots better. You also can send this bitmap to a 3D pipeline.

The selling point needs to be brought to the fore. While Internet Explorer is embeddable, it doesn't offer as good HTML5 compliance as webkit.