Apple iPhone 4 owners, who have been waiting for a proper untethered, have good news here. Renowned iOS hacker pod2g has tweeted that his iPhone 4 running iOS 5.1 is running untethered now.

A few days ago, the French hacker claimed to have found two vulnerabilities in iOS 5.1 that allows hackers to develop an untethered jailbreak. Recently, the infamous hacker updated his official blog with an open poll, questioning - "Shall we hold off the jailbreak for iOS 6?" The poll closed with 64 percent of voters (out of 165993) voting to release iOS 5.1 untethered jailbreak (for iPhone4) as soon as possible, while only 33 percent of voters wanted the hacker to preserve the vulnerability exploits for iOS 6.

Subsequently, the hacker made the announcement that he is running iOS 5.1 untethered jailbreak on his iPhone 4. "Heya! My iPhone 4 running iOS 5.1 is now untethered :-)," Pod2g tweeted on Thursday.

Pod2g has found success in developing untethered jailbreak of iOS 5.1 on iPhone 4. But still there is much work to do before releasing the jailbreak for mass downloads. He is the second hacker to announce the success in running iOS 5.1 jailbreak on iPhone 4 in untethered state. However, he is the first one agreeing to release it publically.

Reportedly, some other hackers have also found success in running iOS 5.1 untethered on iPhone 4, but they rather want to save the vulnerability discoveries for iOS 6, which is scheduled to launch later this year. Untethered jailbreak is difficult to develop. After the jailbreak is launched publicly, Apple can find about the exploits and will fix them in its upcoming mobile platform, making the exploits unusable for the future jailbreaks.

Apple A5X chipset powered devices were jailbroken in March by MuscleNerd and Dev Team. But it is also awaiting a public release date.

(reported by Johnny Wills, edited by Dave Clark)