PROTIP Number 2:
You can access speed dial items 1-9 even more quickly by simply pressing ctrl+the number. You don't need to be focussed on the address bar to do this.
I am usually a fan of Opera updates however this one messed up the ordering of my speed dial on two computers (and thus the keyboard/address shortcuts) and I had to manually rearrange it. I also don't like the massive + icon for adding a new item to the speed dial but thankfully that can be disabled.
To be honest I'd like a greater focus on stability now: I still find Opera hangs now and again on several machines running Windows Vista and 7 (although no problems on XP).
I like Firefox 4 but it doesn't have the features I want without adding extensions which slow it down, and IE9 is pretty good but again lacking in features (mouse gestures, specifically).