Two commentaries run side by side about what's going on here, the others is Greg's, and althoguh he seems unfeasibly over-concerned with my bowel movements he does pen a good line.
Have a look at some of his latest offerings here:
http://wanderingnerd.com/?p=152
http://wanderingnerd.com/?p=151
There is even fairly prominent mention of yours truly in there somewhere.
Not just the produce of my 4-month-long stomach complaints 
