I always see comments such as "when will they come out with an untethered jailbreak" or "I'll wait for the untethered version." Why?! Am I missing something here? Whats so hard about plugging your iPhone/iPod/iPad into a USB port on a computer to perform a jailbreak? I'm assuming I've got this all wrong and it's indeed an important feature to have an untethered jailbreak, but right now I'm just not understanding it. Anyone care to lend a few words of advice?