I can see, I think, why company decided against using site brain, but I think it instead indicates a problem in using PB in real world applications. If it can't be used as site map, can it be used for customer service apps? Or is it just for personal use?
As for the Flash ad. Why doesn't it show an actual brain being used in context? Show a full view of a brain being used in a real monitor. That way the potential user can see it in use. Personally, unless you have large monitors or multiple monitors I don't see how one can use it. Lets show how one must have a medical sergeon's hand precision to unlink two thoughts.
I hope it doesn't sound I'm knocking the PB. I recently updated my version.