Jun - yes, you guys mentioned to me that you'd be looking into porting the old ad server package. Robert e-mailed me. I need to put it into the status sheet, my screw-up.
As far as duplication, we'll see a lot of this given that quite a few folks here work for small companies doing client work under contract. I don't see how we can avoid it.
It would be good to communicate earlier, though, so folks can cooperate where practical, possibly through subcontracts. But if two companies are serving two clients who each need roughly the same thing at the same time duplication's probably unavoidable. We're just too loosely coupled.
As to which ad server "wins" I dunno, people will have to compare them at some point. I doubt if they'll differ to the extent that CMS and ETP differ ... but that's an example where (for now at least) we've kept both packages around.