`  I can't believe I'm going to chime into this discussion, but seriously, that google books link is pretty significant.  The spelling should be moved back to its original, yogurt, as that is clearly the most common spelling based on the sum total of all the information available.  As has been stated, that is the only solution that hasn't been tried, and the argument has been going on for eight years.  The definition of insanity...  —  `