The more I see of Titan, the more amazing it becomes. The thing I like the most is the vast distance between Titan and Earth. Titan will remain in it's current state for eons. Except for the occasional visit from a Huygens type probe. Can you imagine what would happen if BP could send tankers there? Perish the thought.
I've looked at the short movie numerous times. Seems to me that this phenomeon changes shapes more than it remains a constant hexagon. There appears to be a tear drop, a circle and the now famous hex. What causes this is open to suppostion. For myself it could be magnetic fields, solar winds or God just getting our attention, so that we will scratch our collective heads.