Well, the whole key to the thing was irresponsible AACS or PC Software player code that left open things it shouldn't have. There have since either been updates, or the promise to update, which should close the hole for the moment.
It's also important to note that the whole thing falls onto the bandwidth/storage problem for pirates at the moment. The bandwidth is so low it'll take days to d/l, and the storage so huge that one cannot realistically store more than a few.
By the time this is no longer an issue, most of the market should be migrated over to Vista. Between Protected Path Video, and Vista Players, the whole problem should go away. This problem anyways.
As such, once the AACS keys are revoked and changed, with updated players, the damage should be fairly limited for the present time. Which means that even with the hacks floating around, it's better to get the library out there and push the format and let storage/bandwidth limit the damage for the present.