How can it be possible that IDG and Apple can’t seem to come to terms over MacWorld? First, IDG said they were moving the summer MacWorld back to Boston from New York, then Apple said that if IDG did that, they wouldn’t exhibit at the show. Now, IDG is making noise about barring Apple from the winter MacWorld in San Francisco. Something tells me that after a few more rounds of brinkmanship, these two will kiss and make up.