2. Chrome Apps? What does that have to do with the web? It's a Chrome thing, not a web thing (those apps don't run anywhere else). I guess the author is a Chrome fan based on the end of the article though so that figures.
3. No WebRTC, and no WebGL? Perhaps ironic I mention it given my point #1, but these two are going to make huge strides in 2013, and their effects are much larger than nicer CSS filters.