Another interesting use of modern technology... I don't think of myself as a geek...but I do get a kick out of how different new technologies can be used to remove barriers that have in some cases been put there by other (older) technologies.
BBC NEWS | Technology | Smart hat brings play to disabled: "A 'smart' cap that allows disabled children to 'drive' radio-controlled cars and boats, has been launched.
The Dream-Racer device has four motion sensors that detect small movements of the head, which are then fed wirelessly to control the toy's direction.
The UK invention has also been adapted to allow disabled people to play games on Sony's PlayStation consoles."