Three days ago, Nokia submitted a new iPhone-like patent that should enable devices to automatically rotate the screen according to the physical orientation of the phone.
“According to the invention, the orientation of the content of a hard label or a soft label of at least one of the keys can changed so that the key can be used with the terminal in different orientations. The content of the display may also be readable in different orientations by changing the display direction…” More info is available here. (via SymbianGuru)