Ryan Petrich tonight posted an interesting picture to his Twitter account that appears to answer the long-standing question of "can iOS 7 be jailbroken?" The image is of his popular tweak Activator running on what looks like an iPod touch with iOS 7 installed.
Of course, it's easy to speculate about something when there isn't much to go on. But looking at the stock app icons in the dock, the flat text in the alert box, and the Activator icon on the Home screen, it certainly looks like Petrich's iPod touch is jailbroken...