Patent ID: 8487876

Claim:
A hand-held device comprising: a first portion comprising a controller comprising a plurality of actuators and two gripping portions that are immovable relative to one another; and a second portion comprising a keyboard that is mounted in between the two gripping portions, the first portion and the second portion being detachable, when the first portion is detached from the second portion, the first portion is configured to operate in stand alone mode, the keyboard configured for entering text via thumb-typing, the hand-held device having an ergonomic shape that is quantified, at least in part, on the basis of a biomechanical neutral position, the biomechanical neutral position defined, at least in part, by: an approximately zero degree alignment between a radius bone and a proximal interphalangeal joint of an index finger of a user when the user is thumb-typing upon the keyboard of the device and further defined by maintaining the approximately zero degree alignment when the user is operating the plurality of actuators of the controller; metacarpal-phalangeal joints of digits 2 through 5 of the user flexed about 45 degrees; and metacarpal-phalangeal joints of the thumbs of the user flexed about 10 degrees.