This version support geolocation, that enables web services such as online maps and travel sites (and Google search) to recognize your location and adjust their content accordingly. Of course, you choose if and when to make your location available to 3rd parties.
Other features include: tabbed browsing, password manager, Opera Link, Speed Dial, support for kinetic scrolling, Opera's own virtual QWERTY keyboard and auto-rotation support, and Opera Turbo. With this feature turned on, Opera shrinks web pages to as little as 20% of their original size, using an Opera proxy server to re-render the content before sending it to your device.
Download: Opera Mobile 10.1 for Symbian at m.opera.com.