The Register has reported that a UK company called Blue Sky Positioning has announced it has managed to insert a functioning GPS device onto a normal mobile phone SIM card.
BlueSky Positioning CEO Risto Savolainen was quoted saying: “We are only allowed [by the GSM SIM standard] to draw six milliamps, which was a challenge.” The SIM is of standard size and shape, though wouldn’t pass the full ISO tests for flexibility and robustness.
Moreover, the service is actually an implementation of A-GPS (Assisted GPS), so some of the functionality comes from off-SIM, but it’s still an incredibly impressive piece of shrinkage.
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