If you thought that Perfect Dark Zero and Kameo were complete, you've got another thing coming. Rare has unveiled that they are working on more multiplayer maps for Perfect Dark Zero. In addition, they will be addressing some "annoying" gameplay issues. We're not sure exactly which annoying issues they are referring to, it could be a number of them. Anyway, this is good news for Perfect Dark owners.
In addition to this, Rare is in the final stages of testing multiplayer co-op mode in Kameo. This is going to be a great addition; it will add a lot of replay value to game that was considered by many to be too short. The updates should be out soon. XboxSpace will keep you posted.