Wearable computing, input, and display device

A wrist worn computing device comprising:

• an adjustable thin wristband wrapped around a wrist of a user;
• an extender mechanism attached to the wristband such that the extender mechanism has a recessed position and an extended position;
• and,
• at least one of:
• an input mechanism attached to the extender mechanism such that the input mechanism has a recessed position in conjunction with the extender mechanism in which the input mechanism is wrapped around the wristband, and an extended position in conjunction with the extender mechanism such that the input mechanism is unwrapped from around the wristband and extended such that it is substantially positioned beneath fingertips of the user without being detached;
• a display mechanism attached to the wristband within a structural housing of the wrist worn computing device and positionable above the wrist of the user;
• and,
• a computing mechanism attached to the structural housing of the adjustable thin wristband.

A thumb-held mobile computing device comprising:

• a housing;
• at least one of a computing mechanism and a wireless communication mechanism embedded within the housing;
• an input mechanism having a folded position and an unfolded position, the input mechanism comprising a plurality of thin sections, each section containing one of a plurality of keys and a pointing device, the thin sections having one or more folds;
• one of a thumb loop and an elastic band attached to one of the sections of the input mechanism into which a thumb of a hand of a user is inserted such that fingers of the hand of the user are able to use the plurality of keys in a one-handed manner;
• and,
• a flexible connector at each fold of the thin sections connecting the sections together at least one of physically and electrically.