Do you think Apple will add something like AirDrop in iOS 6 before the GM to compete with the SIII's instant file sharing? Since it's already in mac, I see no reason that they don't bring it or something similar to iOS.
Airdrop would be really cool, but iPhone does not have a file browser or something like that that would be able to find and select files, apps, music, etc. I'm sure Apple could figure something out. :]
I see no reason that they can't add an airdrop app, with push notifications, that could also act as a file manager within a folder that you can do whatever you want with the files you receive, along with special folders for your camera roll.
As you can see I might not be the best in putting my ideas into words, but that's apples job.