Chronic Dev has released its Mac version of greenpois0n, a 1-click jailbreak solution (see why you should jailbreak here). However, it will NOT unlock the device, enabling it to be used with different GSM carriers worldwide.
It is pretty easy to use and worked perfectly with my iPhone 4. Besides the tool, there’s a ‘Loader’ application that gets automatically installed on the iPhone after jailbreak, which gives you option to install Cydia.
Here’s how it works.
- An iPhone (3GS or later) / iPod Touch (G3 or later) / iPad
- iOS 4.2.1
- greenpois0n RC5_2 tool available at greenpois0n.com or here.
- iTunes 10.1 or later
- A wireless internet connection (to install cydia)