> In the iPhone 4S’s case, the A5 SoC withstood hacking attempts for months — much longer than any other Apple device — before it finally fell.
In fact, we never found a bug in the A5's bootloader: Corona (the 5.0 exploit I helped implement) and Rocky Racoon (related 5.1 exploit) were purely bugs in iOS, and as of 6.0's release we are not much better off on the 4S than we will be on the 5.
(edit: OK, I decided to at least skim the rest, as I realized I should probably at least know if they said anything I'll have to deal with ;P.)
> The one glimmer of hope is that iOS 6 has already been jailbroken — but only on antiquated A4-based devices (iPhone 3GS/4), and it’s still only a tethered jailbreak.
So, iOS 6 is not jailbroken: the A4 is; this is a similar mistake to the earlier one, but in the opposite direction.
The reason this is bothersome is because I can tell you with utter assurance: if Apple releases iOS 7, and it supports your iPhone 4, we will be able to jailbreak it, and it won't even take much effort; I don't even need to see iOS 7: I can tell you that today.
It is thereby not at all interesting that we have a jailbreak for iOS 6 on these older devices, and doesn't offer forward any kind of "glimmer of hope" ;P.