Can We Get to a Single Point of Deduplication?

With the EMC-Data Domain acquisition seemingly moving along, a new point of debate is going to arise; can we get to a single point of deduplication? Meaning can you have all your data tiers; primary, archive and backup deduplicated by a single engine?  

The argument makes sense, especially in deduplication. After all the more data you put through the deduplication process, theoretically, the greater your deduplication rate is going to be. The fewer interfaces and processes you have to deal with for optimization the easier your management of the process is going to be. The challenge is that right now for the most part we have seen a more silo approach to deduplication.