What do the 2 pins on the back of the Nexus S do? I'm really frustrated with a Nexus S turning off while in my pocket. I'm wondering if it has something to do with the pin positions, or these 2 strange back pins and contacts on the cover that don't seem to do anything:



I guess those tell the phone "the back cover is on", which must mean something to the phone.  When I put a piece of paper between those pins and the back cover, the phone at least doesn't seem to do the (literal 5 minute) "flash disk check" when the phone comes on.

Is blocking these pins from contacting a bad thing? Will it help to stop the phone from turning off in my pocket?
This is for the NFC functionality. Those contacts are used to transmit the info to and from the receiver/transmitter on the back cover (seen below outlined in green, though you probably guessed it :) ). They have to put it on the back cover because NFC only works for usually no more than a few centimetres, and they need a way to feed the information back to the phone system itself.

It is discussed more in this post on another Android forum.