>iPhone RFID Reader Update
Well, it turns out that soldering a resistor between pins 21 and GND will actually sort out the problem. Its one of these things that isn't mentioned on the majority of pages but can be found in some obscure places. Looking at the Rather Excellent iPhone Keyboard Mod I can confirm that this is the thing to do. With Low frequency RFID this isn't needed fortunately but nevermind. Something to remember for the High Frequency version.
