You would think so eh?
Since it's almost October and not a peep of confirmation from 402 or Glen Schofield on our repeated requests for a feature we probably should have had from the beginning of CoD this gen, I think we can safely assume they simply haven't bothered. Again.
Speaking of which, I also don't care for waiting a year to find out if Vahn's genuine interest in the idea actually comes to anything (considering he didn't give a flying **** about it before you cornered him at COD XP).
Have any PS3 games been able to install to HDD? I think this would be an issue for Sony to sort, not Activision.
Microsoft are the ones who updated the Xbox to allow HDD installs, as far as I'm aware, PS3 doesn't have such a feature.
ALL Xbox games; old and brand new, can be installed to the HDD, it's not a piece of software that the devs of "insert game name here" have to add to the disc.