A few new things they have so far (that I love!) is the: inline spell-check, auto-update, and the fact that it passes the Acid 3 test. It feels more responsive on gmail and google calendar.
I really like the inline spell checker. It's the one thing that I have had inconsistent trouble with from computer to computer using Opera on Ubuntu, but now it looks like that might not be the case.
Please do not download and use it as your main browser. As with any alpha, beta or release candidates it is NOT RECOMMENDED to use on a every-day basis. It is meant for testing purposes only.
Edited by yano, 08 December 2008 - 10:37 PM.