Chronic Dev Team hacker Pod2G, who reported last week of being able to get an untethered jailbreak running on an iPhone 4, has updated his progress with further news. He has gotten the jailbreak exploit to work on most other iOS devices capable of running iOS 5.1, regardless of processor type. The breakthrough, which may not apply to the latest iOS 5.1.1 update, could mean a public tool for untethered jailbreaks will arrive soon.