One year later, it has an extensible plugin architecture so any site can be supported, multiple languages, and there are aready 14 plugins: (https://www.github.com/lipsurf/plugins) There's a HN plugin so you can say "click #" where # is the post rank (eg. click 5) Also "comments #", "upvote #", and "next page" are supported. This is how simple the HN plugin is: https://github.com/LipSurf/plugins/blob/master/src/HackerNew...
I'm targeting those looking for more efficient ways of using the web. Singular voice shortcuts can replace UIs and lots of navigation/finding buttons. The extension is especially useful to those who might be excluded from the web today due to accessibility issues. LipSurf enables those with motor disabilities: Parkinson's, arthritis, cerebral palsy, RSI, etc. or to those with arm injuries, spinal injuries, amputations etc.
Not everyone can use a mouse, click on small links, or navigate complex dynamic UI. So I hope this will be useful to a wide variety of people.