With the Metal Detector v1.0 touch application of the Offscreen company, we can any ferromagnetic object or magnetic field nearby with our Nokia N97 or N97 Mini.
You can only install this application on phones with support for compass. You calibrate it before running, like the compass. The truth is that it works, but do not recommend bring a mobile 600 euros to the beach to detect metals or whatever you may be thinking XD.
Download | Metal Detector
how do you calibrate this? Ive been moving my phone in a figure 8 forever yet i have been unable to calibrate it, ive gotten up to 75% calibration but have been unable to get it to 100% calibration can anybody get this application fully calibrated? Prehaps put up a video because i think im doing something wrong