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I am developing a radio receiver and am looking at the Iphone as a display medium.....i.e. the signal that my receiver picks up overlayed onto a GPS enabled Iphone map.
I have done some googling and it seems there is no way to use the GPS function with the phone receiver turned off (airplane mode). Is their a phone crack that will allow me to do this?
Will the iphone accept any data input from external devices? I saw the Tom-Tom GPS booster released, so I am hopeful, anyone know definitively if there are other devices that the iphone accepts data input from?
Saw a post in a review of the Tom-tom app that indicated the internal GPS functions without the SIM card installed. Just a little slower to locate because AGPS chip uses the cell towers to get a position faster.
The iPhone SDK as of version 3.0 lets you communicate with external devices. I think can be either hardwired, bluetooth, or wifi. Not sure if iPhone can initiate an ad-hoc wifi network but it can definitely join. When they announced the version 3 stuff there was a medical device that talked directly to the iPhone via the SDKs. Take a look at developer.apple.com.
IPhone 3GS Questions
