Regarding Unite : I dont think that Unite has affected Opera’s rendering. Also remember that Website compatibility can be a bitch. Most of the websites that don’t work in Opera is due to poor coding and not poor rendering.

Read Hallvord’s blogto see how hard opera is trying to fix the broken web.

Regarding Turbo : I won’t really complain since Opera is offering for free something that has always been paid (see http://www.onspeed.com).

Regarding Extensions : Something Opera should have added a long time back. Its beyond me as to why they are being so rigid about providing an API.

Oh by the way, did you know Opera was the first browser to come with tabbed browsing?

This is incorrect. The first browser with tabbed browsing was The Internet Works (1994). Several years later Opera got it (initially it had MDI but not tabbed browsing).