For those with Linux on convertible tablet/laptops like the Dell Latitude XT and XT2, HP xc4400 etc, you might find Magick Rotation useful, it enables automatic screen rotation when you switch between laptop and tablet mode. Download and extract Magick Rotation, then make sure the magik-rotation file is executable, the right click and run it, or cd into the directory and do ./magick-rotation. Follow the instructions in the readme as it may vary depending on make/model. I've just set it up on Ubuntu 12.0.4 on my XT and it works very nicely. I've disabled the Cell Writer function as I don't need it but may be useful for those who use portrait mode and use the stylus to write notes.