A new company called BlueSky Positioning has come up with a complete GPS unit built into a mobile phone SIM card. The phone body is used as the antenna, and the technology is A-GPS so much of the processing is done off the SIM using data sent from the network via SMS or something similar.
Still, the technological advance is considerable; it could certainly deliver the full mapping, location and route-planning offer, and it supports E-112 and E-911 Emergency Call Positioning. No software or hardware changes are needed for legacy handsets – it will run under open operating system such as Windows Mobile or Symbian, or on handsets supporting JSR177 (which enables Java applications to talk to the SIM) – and switching the SIM will obviously cost a fraction of the cost of a new handset.
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