The new browser does not support any of the promised and expected
features. It seems to be the same browser with some minor core
updates, such as support for better exception handling with new
object constructors like SyntaxException, EvalError or URIError.
There is still no support for SVG, Animated GIF, Web Sockets or
other HTML5 stuff (besides HTML5 compatibility in 2.2). And there
is no support for Device Motion, accelerometer, camera or speech
support, as promised in Google IO (see video1 — starting at
6:00 — and video2).
Apple’s “closed” iOS web browser has better support for mobile web apps than Google’s “open” Android browser. I’ll bet Google closes that gap eventually, but it’s curious that they haven’t yet.