Slug is awesome, I hope someone will make free solution like that :)
Slug works with big amount of info available for fragment shader, my solution is more vertex-heavy, it fails if there's complex subpixel geometry. Subpixel edges/corners of lines are OK though :)
My input currently is human-made moveTo/lineTo and curves. If I somehow fit subpixel scanline like canvas2d AAA, we'll be able to draw very heavy vector shapes.
But for now, I'm trying to hack something that works only with human input and simple imported SVG's or SWFs, across all the devices with webgl1.
After I integrate it in pixi, I would like to put it in other html5 renderers.