It's not iOS, UILayer, and UIView, but Blossom[1] supports an equivalent, canvas-based development model and hardware-accelerated layers and transitions in the

It's not iOS, UILayer, and UIView, but Blossom[1] supports an equivalent, canvas-based development model and hardware-accelerated layers and transitions in the browser, based on Apple's SproutCore MVC framework. It would work well with mrdoob's editor, and it's all JavaScript (no HTML or CSS to deal with). [1] https://github.com/fohr/blossom https://github.com/fohr/blossom