You surely know the automatically rotating screen of the iPhone when you turn the phone into another position. In future you can make that with your N95, too. There´s an application called “rotateMe v2.0” and this application uses the built-in level sensor to change the display layout from portrait to landscape and back. There’s already a video showing how good it works.
The application is still in testing, but you can download it unsigned on end of November.