been awarded a patent for a touchpad that basically extends for the entire length of a notebook computer.
The patent is for a similar device seen in the iPhone and will is being tipped for future inclusion into MacBooks.
The area will take up space in a laptop which is currently used to rest the user's palms.
The touch pad can be used to decipher what kind of input is being made on the touchpad so that it can tell if the hand is resting on the touch pad or the person wants to use it to send a command.
More details here