NFC or Near Field Communication is a standard for devices to communicate via radio signals. Many recent smartphones now support NFC and it is also possible to communicate with an unpowered NFC chip called a "tag".
http://en.wikipedia.org/wiki/Near_field_communication
When you tap your device against a tag, it can respond with information or instructions for your device to display or carry out. In this case it should display a text string with the GPS coordinates of the cache container. In future I may look at programming the tag with an actual GPS waypoint which might be handled more intelligently by certain devices. For the moment you need to copy and paste the string, or write it down, or enter it into your separate GPS.
I realise that requiring an NFC-reading device will make it difficult for some cachers. But to my mind it's no different to other caches that require abseiling equipment, a 4WD car or the ability to solve tricky puzzles. It wouldn't be much of a challenge if they were all trivially easy to find. The good news is, once you have NFC working, this one IS easy to find!
Note: the cache name written on the log file is different to the published name. You are looking for a small black bison tube. Bring your own pen.
** Congrats to xelanhoj for FTF! **