Opera works. I haven't tested it extensively enough to tell you if <your favorite feature here> might be broken, but just browsing around normally it seems fine on 1.2.

I don't know if the "hold down key -> blue key press" is new to 1.2 or not, but it's brilliant and a life saver. Typing IP addresses just got 100x easier, I'm pretty thrilled about it.

Haven't tried the ctrl+shift+r thing yet. Strikes me as a "stealth" beta feature they snuck in for fun -- something they'd like to do for PR 1.3 (or Meego 1.0 or whatever the next thing is), but not something that's ready to go now.