Elf on the Shelf

Has anyone heard about these? http://www.elfontheshelf.com/ Elf on the Shelf comes to your home and "he" reports back to Santa on what goes on in the house and he is in a different location in the house every morning when the kids wake. Children can't touch him because his magic will wear off and he doesn't talk either because he doesn't want to spill secrets. So cute! We already have Barnaby our boy elf and soon his sister is going to visit... Maybe her name is Gumdrop, Milseain. Tinsel or Snowflake we will see. Barnaby also tells the kids how many days left till Christmas with little numbers he is holding each day (Anyone want to make me Cricut #'s for a reasonable price?) . So who is your Elf on the Shelf?