Opera Software announced they are no longer going to develop their own HTML rendering engine, Presto, for their popular Opera browser and are instead switching to WebKit, the engine in Safari and Chrome.
With Opera switching to WebKit, that leaves Firefox and Internet Explorer as the outliers. Hopefully Opera's move will put pressure on at least one of these outliers to switch, ideally both. That would make life a lot easier for web developers who today have to test on at least three different browsers. To me, that just makes no sense. If Firefox and IE switched to WebKit (which I know is unlikely but hey, I would have said the same about Opera), then web developer productivity would certainly improve. And hopefully, like Opera, more developers will be improving WebKit rather than being spreading out their effort among three different rendering engines.
Robert O'Callahan of Mozilla said this is a "sad day for the web". I agree with John Gruber that this is a sad day for Mozilla but it's a great day for the web.
Once they complete this switch, we will likely add Opera to the list of browsers supported by the web framework in Real Studio, giving our customers one more choice of browser for their customers.