I think a lot depends on how much further west it comes and how much it grows in intensity. This could be interesting to watch. If Bonnie circles back NE as predicted and Charley keeps on course, they could possibly collide over the Carolinas.
I'm suprised the weather prognosticators that get paid to think of this stuff haven't thought of it yet. They are definitely going to come close to each other if they continue on the way they are going.