This would no doubt be of interest to C2 devs, since Humble is now starting to sell HTML5 games( along with their DRM and Steam equivalents) in this bundle. Even though I already have most of these games on Steam, I will be picking this up.....I hadn't even heard of Voxatron before this, and it is very cool. Check out the demos, to see how surprisingly well these games play in a browser.
Considering that Osmos is created entirely procedurally (including all of its graphics, as they are not premade sprites), it is amazing to see how well it plays in the browser. Voxatron uses a voxel engine and it flies even on my crappy browsing laptop. Impressive to see how well these asm.js versions are fairing!