[Update: Andriasang has confirmed that the August patch will grant full install support.]
It looks like the cat is out of the bag regarding the August Metal Gear Solid 4 trophy patch, but that's not all that's coming in terms of functionality. It seems as if Konami has confirmed that you are now able to fully install the game onto your PS3's HDD, meaning you don't have to constantly be jerked around and installing bits and pieces as you go.
The problem is that Konami hasn't confirmed this as a function of the patch itself, only as a feature of the "best" budget version of the game, coming to retail around the same time in August.
As someone who has a save file before every boss in the game, not having to constantly re-install every chapter separately will be a God-send. I just hope it comes in the form of a patch, as one lone feature will be a hard sell for a double-dip.