Re: Closed that jailbreak hole pretty quick
9.1 has been in beta since before 9.01 came out; I suspect that Pangu knew that the full 9.1 release would close the hole, and therefore released the jailbreak for those willing to put tweakability* before security.
* having insisted on only getting an original iphone once they could be jailbreaked to allow unlocking & custom apps to be run - remember this was before the original app store launched - i have now gone the other way; I no longer see a value in jailbreaking, as it causes more problems than it solves. e.g. my online banking apps can tell if the phone has been jailbreaked, and thus they refuse to work!