I can't find any infrared sensor API in the Windows Phone SDK.
Is there any infrared sensor in WP7 and is this API exposed to the developers?
EDIT: I am asking because the majority of mobile OSs have historically supported infrared communication (Symbian, iOS).
IR Sensor is not a standard feature on WP7 so there is no api exposed, if you do have one on your device then it is probably used by the oem for something but i can't see why they would have one.