"Blizzard Entertainment is seeking an enthusiastic senior software engineer to be a key contributor on the Diablo team," the job posting read. "This position is responsible for overseeing PlayStation 3 (PS3) architecture design as well as other PS3-specific game code development to maximise platform performance. Responsibilities are to "design, implement, and maintain game systems to work on the Playstation 3".
No word on an Xbox 360 version though. The only reason they would not also release it on the Xbox 360 is probably because Microsoft would not allow Blizzard to run BNET through Xbox Live.
Blizzard will hopefully clear this up and release more information at BlizzCon in autumn.