Here is a little proof that iOS 7 has already been jailbroken:
Even though these Images seem legit, Ryan Petrich (Developer of many Cydia Tweaks, including Activator), didn’t say too much about it on his tweet!
Also, these rumors are more popular on the Web, and more information is provided to the Jailbreakers but this time, not? Strange isn’t it?
Many say that Ryan used the Simoulator, which is not correct why the Simoulator says “Carrier” not “iPod”, so It might be a good sign for the Jailbreak Community!