A job listing on the Blizzard website is looking for a Playstation 3 software engineer for the Diablo team. While this is not a direct indication that Diablo 3 will be available on the PS3, it surely brought up some hopes.
According to the job description, “Blizzard Entertainment is seeking an enthusiastic senior software engineer to be a key contributor on the Diablo team. This position is responsible for overseeing Playstation 3 (PS3) architecture design as well as other PS3-specific game code development to maximize platform performance.”
Until it’s officially announced by Blizzard, it can just be a research related job.