purplera1n allows the installation of third-party software is not approved for applications in the Apple Store.
George Hotz, who you may recall, as in the teenage hacker, who was originally from unlocked iPhone, released to lose jailbreaking application for the iPhone 3GS, code-named purplera1n. This makes it possible to install third-party software is not approved for applications in the Apple Store.

Currently purplera1n this is only for Windows (but not Windows 7), and requires the latest iTunes installed, and the iPhone 3GS with 3.0 firmware. On Friday, a blog called “I do it ra1n,” Holtz said Mac version “coming soon.”

Holtz noted that he typically has no means for the general public, and will wait for iPhone Dev Team, do so.

“But the guys that happened to waiting for 3.1? This is not how the game is played,” he chides his blog. “We have Apple release fixes, we find a new hole. Do not wait, because you may have in the past ‘hole in the iPhone. What was the last hole … this is not golf. I find a new place next week.

John Biggs at CrunchGear among those who have already given the data purplera1n and go and announce the jailbreaking process is “surprisingly easy.”

Why do we get a sense of jailbreaking will be part of a long Fourth of July on the agenda? But take note: Hotz also warn that purplera1n is in beta and offers data backup to run applications.