If you are currently on iOS 7, I would recommend downgrading to 6.1.3/6.1.4 (via DFU). Why? There is currently a possibility of a potential 6.1.3/6.1.4 untethered A5+ jailbreak being pushed in the upcoming days/weeks.
If you wish to be included if such thing takes place, downgrade now. While you still can! Once iOS 7 goes live later today, the 6.1.3/6.1.4 signing window should close within the hour of the release (possibly even minutes). If you're still running 6.1.3/6.1.4, today is your last chance to restore and get a "fresh" start.The jailbreak mentioned by iH8sn0w would likely be the one done by the iOS hacker wincom who showed iPhone 5 on iOS 6.1.4 running Cydia before.
So, what to do now? If you're on iOS 7, it's better to save your SSH using TinyUmbrella and downgrade back to iOS 6.1.3 or 6.1.4 to get the jailbreak once it's released.
If you're on iOS 6.1.3 or 6.1.4, just stay away from iOS 7 and also save your SSH. Wait for the news in the upcoming days!