PSU.com has uncovered a bit of interesting information regarding the beta for Call of Duty: World at War, apparently it will be run on PC and Xbox 360 only. PSU contacted Activision and Treyarch and they said the following:
""We are running the beta only on the Xbox 360 and PC," said the representative. He continued then to point out that most betas on the PS3 are run by first party anyways, and if Treyarch runs their testing on the Xbox 360 and PC they acquire more data on servers and connectivity."
So whether this means the PS3 version is already good to go, or that they are behind schedule on it we won't really know. Those of you PS3 owners looking forward to the beta need to find a friend with a PC or 360 quick.