This is just an inquiry about EMF detection on this device; Being an RF engineer and not knowing the algorithms for this device, I have a question: waving the iPhone over another iPhone ON / OFF, or other RF electronics (with is app), tends to cause the app to go crazy! Excellent! However, waving another iPhone or electronic device OVER the iPhone with the app ON-absolutely nothing happens. Is he algorithm tied to the accelerometer? In essence what I’m getting at is that: it would be more interesting (or useful) if the user iPhone ‘Bluetooth’, ‘WiFi’, and ‘Carrier’ RF fields were interrupted by other active or inactive devices sensed by the user phone and reflected by the app. If possible in an upgrade, that would be an incredible addition!