We told you long ago to make a jailbreak exploit s need several, not just one, well, pod2g already has all that it takes to do the jailbreak iPhone OS 5.1.
This would be untethered jailbreak (being a jailbreak software, type userland) and serve to all devices, including the iPhone 4S or the new iPad. We only have to skip the ASLR, which means "Address Space Layout Randomization," and what basically does is to change some internal addresses that were previously fixed now going to have a random position in memory. So the userland jailbreaks have it more complicated. The ASLR makes your device more secure, but also prevents the implementation of Mobile Substrate, so all modifications using Mobile Substrate not work (winterboard, SBSettings, biteSMS, folder enhancer, etc.).
Yet this jailbreak available may take weeks or even months, but hopefully as little as possible, we will keep you informed.
I0n1c also said it's silly to waste the public exploits in the jailbreak, but we will not give more importance than it has, just a troll scene.