A mini version of Logitech's popular iPad keyboard is available for $80.
Like the larger version, the keyboard is made of an aluminum shell and relies on Bluetooth technology. When not in use the board attaches to the side of the iPad and folds over the screen, acting as a protective pad. To use the keyboard one must detach it from the edge and the iPad is inserted into a groove, which means that the keyboard also acts as a stand.
Logitech claims that despite its smaller size, the board contains full-sized keys in the standard layout, meaning that typing is not inhibited due to size.