How to Jailbreak 4.2.1 iOS iPad, iPhone, iPod Touch using Greenpois0n RC6 is a post from: Gadgets DNA With Greenpois0n RC6 jailbreak tool (untethered), you can easily jailbreak iPhone 4, iPhone 3GS, iPod Touch 4G, iPod Touch 3G, 2G (all bootroms) and iPad on iOS 4.2.1 including Verizon iPhone 4 iOS 4.2.6 firmware. If you want [...]