Valve has sent mixed messages regarding this title being developed for the PS3. Obviously, the only confirmed port is for the 360. I think that Valve would want to be involved with any additional ports to avoid an Orange Box fiasco. Since they won't be releasing a PS3 version before Christmas, it makes sense that they would deny a PS3 version all together.
Companies like to pretend other versions aren't going to be made to get "fanboys" to create threads about how great the game will be on their system (not this thread). See Bioshock for a great example of building hype through an "exclusivity" marketing campaign.
Thanks for the input, Jeff.







