In April of last year, iOS hacker axi0mX came forward with the alloc8 untethered bootrom exploit for all models of the tried and true iPhone 3GS. But as of this weekend, he announced an update for the exploit that brings improvements to stability and usability.
As per one of the axi0mX’s most recent Tweets, the updated exploit does away with a bothersome three-second delay that typically transpires when waking the device from sleep: