We’ve posted how to Jailbreak (JB) your iDevice before. With the release of iOS 4, inevitably a Jailbreak and unlock was only a matter of time. Here’s a list of devices that this JB will work on. Please note that you’ll need to be connected to a WIFI network to complete this guide.
iPods;
All iPod Touch models on 3.1.2, 3.1.3, 4.0 & 4.0.1 Firmware
iPhones;
All iPhone models on 3.1.2, 3.1.3, 4.0 & 4.0.1 Firmware
iPads;
All iPad models on 3.2 & 3.2.1 Firmware
(MC Models & New Boot Rom included)