Browser seems to be improved quite a bit.
1. Performance is much better both subjectively and objectively. I got a sunspider 0.9.1 score of about 2150 which is quite competitive.
2. A "reading mode" has been added for long articles that allows you to read the article in portrait mode without the website stylesheets etc applied. Good for reading, say, reviews from TR or realworldtech articles
3. WebGL is now supported in the browser. Performance is quite decent.
Emails work fine, I have been running Gmail on it and have been getting email pushed within a minute or so.
OTOH, still no Kindle or Skype etc.