NCR - Selfish self service research

Thinking of an all in one device, i decided to look into GPS. An all in on GPS device with a lift pass incorporated into it. I looked at GPS and screen technology, which will work outside in strong sunlight. A Transflictive screen is a screen which has a reflective module built into it, this module reflects the sunlight off the LCD screen, allowing the user to reed off of the screen easier. I also looked at Mp3 player rubber casings and arm straps, which i thought would be good to incorporate into the design of the device.