Comex recently has released a new jailbreak for iOS devices running 4.3.3. This jailbreak uses a PDF exploit within the Safari browser of the devices which enables the jailbreak. The process of jailbreaking like this is ridiculously simple, all you have to do is go to jailbreakme.com and hit a button twice and done, you are jailbroken.
Because of this simple procedure some people have recorded themselves going into Apple stores and jailbreaking display devices for a laugh. I might do this at my local Apple store.