2 days ago Apple launched iOS 4.3.4 to block the exploit used by comex in the jailbreak solution jailbreakme.com 3.0. Unfortunately, Apple has blocked more than one exploit in iOS 4.3.4 because even i0n1c's untethered exploit no longer works and it seems that Apple has modified some aspects of iOS 4.3.4 that make it difficult to implement a jailbreak solution. These changes were initially highlighted by the impossibility to do jailbreak using redsn0w, this was corrected later with the release of redsn0w 0.9.8 beta 3, but the actions of those from Apple remain.
i0n1c announced today that Apple has blocked in iOS 4.3.4 some vulnerabilities used in jailbreak solutions since iOS 4.1 and those who make jailbreak solutions will have to find alternative ways to use their vulnerabilities. Apple is constantly under pressure from application developers and mobile phone operators who want piracy and unlocking to disappear along with jailbreak. Fortunately, Apple does not manage to block all vulnerabilities in the system, so we will have jailbreak solutions in the future, but iOS 5 could convince many people to stop using them.
Finally, I remind you of one thing mentioned yesterday: i0n1c clearly said that an untethered jailbreak solution will not be released in the near future. Considering that iOS 5 will be released in almost 2 months, it is unlikely that any developer will risk an untethered jailbreak exploit for a version of iOS that will no longer be updated, so we will have untethered jailbreak only in iOS 5.
