With the stamp of approval from the US Government, I'm sure the Dev Team is quite happy
However, I'm concerned with their avenue of attack...Safari. There is apparently some flaw in iOS's Safari that allows for arbitrary code execution on the local machine (as root?haven't really been keeping up with the JB scene)...remember that guy that rickrolled jailbroken iOS devices that had the SSH server set to the default password? iOS is a huge target nowadays(for a mobile device that is) and I hope the dev team patched the hole that they tunneled in through...
But kudos to the Dev Team;they're geniuses and darned heroes in my book for sticking it to Steve Jobs's Walled Garden.