I have an iPhone 4 and I have the new iOS 5.0.1 firmware installed and heard about the new jailbreak that is untethered. I wanted to try it out and had a few questions for people that know about jailbreaks. My first question is about how I should jailbreak it. Is it better to jailbreak it tethered then to install the thing in Cydia that makes it untethered? Or should I jailbreak it untethered and just be done? My last question is whether or not it is important to restore your iPhone before jailbreaking it?