RotateMe is a freeware application in Beta stage for Nokia S60 3rd Edition mobile devices that allows you to rotate your mobile screen orientation from portrait to landscape mode and vice versa. This mean you may be able to run applications and games on your S60 3rd Edition mobile device in the Landscape mode. But beware, the application consumes a lot of memory in Landscape mode probably because it is in beta stage.(via)

The unsigned version of the application can be downloaded here. And you can sign it by following >this guide

Update: A new version of RotateMe is available for download here. Now you can use the combination of ‘Edit’ + ‘Dial’ hotkeys to switch between landscape and portrait modes.