There are several ways to jailbreak iOS devices, but most of them are time-consuming as they require you to connect your device to your computer for the jailbreak to complete. Thankfully, JailbreakMe 3.0, just like previous versions, allows easy jailbreaks by simply visiting the JailbreakMe.com website, thanks to a PDF exploit in Safari.
This method truly is the simplest way to jailbreak your device on iOS 4.3.3, and it’s fully untethered, meaning that you don’t have to plug your device into your computer in order to boot it into a jailbroken state. Adding to JailbeakMe’s advantages is its compatibility, since it works with every device on the face of the earth (running firmware 4.3.3), including the iPhone 4 and the iPad 2 (3G, CDMA & WiFi models). Support for iOS 4.3.1, 4.3.2 and 4.2.1 will be added later. iOS 5 betas are not supported.
Launch Safari and point it to http://jailbreakme.com. If everything goes as expected, you should see this on your browser:
Remember to patch it with PDF patcher 2 to plug the security exploilt.