I turned NFC off long ago to preserve battery, so it should not be NFCCould be the NFC trying to find something to talk to.
um... I guess it's average ATT. I do have very poor ATT reception at my work location, but in that situation, the phone doesn't get hot in any way.How is your signal? If the device is constantly searching for a signal, and the signal is weak, that could cause the device to get warm. Poor signal will also drain the battery.
Do you subscribe to any podcasts that get downloaded automatically via WiFi?
Is GPS enabled?
