Pre-iPhone I used my Symbian phone as the GPS system in my car, using software called Route 66 and a bluetooth based GPS receiver. The map data was all stored

Pre-iPhone I used my Symbian phone as the GPS system in my car, using software called Route 66 and a bluetooth based GPS receiver. The map data was all stored on an MMC card so it didn't need any GPRS data. I used both a Nokia 6600 and then a 6680 with the same software. https://www.pocketgpsworld.com/route66-mobile-britain.php https://www.pocketgpsworld.com/route66-mobile-britain.php Only the bluetooth GPS receiver had to be kept in the windscreen, and both parts were small enough I could easily could take out of the car when leaving it. I suppose it was slightly bleeding-edge stuff for it's time but it worked pretty well considering the capabilities of the device and was much cheaper than a dedicated GPS unit with no ongoing costs.