I have been given an iPhone (an old 3G) which I intend to get unlocked. Do I need a specific SIM for iPhone, or can I use my old/existing SIM (from an even older Nokia phone)? I just need PAYG for voice/text really, but data would be useful.
The 3G and 3GS use standard size SIMS so no cutting involved. The microsim is used from the iPhone 4