Rebuilding a graphic button as a pure CSS3 button. Uses a transparent PNG for the FB icon, which was built at Retina Display size, then reduced by 50% for normal web app.
Image shows normal, hover, and down states.
Not perfect yet, but...
Hat-tip to my colleagues Caroline and Kerem, on whose work this is based. Also Matt who helped us tweak the UI using typical Android patterns and styles.
Oh, and this was just a bit of fun on my part; we're not really going to publicize...