World’s Smallest GPS Receiver:
Rakon, a 39-year-old New Zealand-based company, has developed the world’s smallest GPS receiver. Claimed to be as tiny as the size of a baby’s fingernail, the GPS receiver chip is small enough to be fitted into devices such as watches and cellphones.
GPS Enabled Phone? Just swap sim card!: A-GPS is great technology. I’ll explain briefly - an A-GPS device takes the strength readings as normal from the satellites but sends the 3 or more values via the cellphone network to a central server to work out the coordinates of your position and returns them to the phone. This means all the lat/long calculations - the knowledge of the curves of the earth, the geo-spacial processing is all done external to the A-GPS chip.
