Cybernet news has a look at Opera 9.5 Features. Opera is a very cool browser, don't get me wrong, but right now it just doesn't give me anything right now that Firefox doesn't give me, though some of it's features (like keyboard navigation with the 1, 2, x and z keys is very cool).
The new Opera 9.5 alpha will be available to the public tomorrow apparently, so everyone can have a look at it.