Fortunately, beginning today, a developer version of the new Chromium-powered Opera web-browser is now available for Linux users. The developer stream of Opera 24 is now available for Linux fans. Opera's testing has focused around 64-bit Ubuntu with Unity and the GNOME Shell.
Details on the Opera 24 for Linux release can be found via the Opera Blog. "Adding Linux to our browser line fulfills an important part of Opera’s vision to shape an open, connected world. We want everyone to have fast and safe access to the web. Adding Linux opens up that possibility to more machines running the open-source operating system."