Well, give it time. According to Wired Magazine there are already reports of hackers accessing the shell within the iPhone. Apparently using a do-it-yourself iPhone to serial cable in conjunction with the iPhone interface application, they were able to get to a shell which basically would give full privileges to the user on the iPhone. I can’t wait to see what happens next, I see a Linux distribution running on it in now time

~j

Sources:
Wired Magazine
iPhone Unlocked