Just like Steve Job’s ones, I would like to really receive a short and direct answer to my question: your next tool will jailbreak ready for iOS 4.2.1 or the next iOS 4.3?
Comex replied:
Depends when 4.3 is out.
The email address of Comex as shown in the screenshot above seems authentic as he posted the same address publicly in a reply to a user on his Twitter account.
So as things stand now, the only way to get untethered jailbreak for iOS 4.2.1 is to use the latest version of Redsn0w 0.9.7, which requires you to have SHSH blobs of iOS 4.2b3 saved. There is currently no other way to get untethered jailbreak except for Redsn0w. If you don’t have SHSH blobs of iOS 4.2b3 saved, you can use Redsn0w 0.9.6 which can jailbreak (tethered only) all iOS devices on iOS 4.2.1.
Comex untethered jailbreak tool will be released only after Apple releases iOS 4.3 or 4.2.2, whichever they decide to before the major iOS 5.0 release in June this year. [Thanks iDarkman for the hat tip]