The best and the most easiest jailbreak tool has just been updated (unofficially?) to bring support for iTunes 9.2. Earlier when Apple released the final version of iTunes 9.2, it broke the compatibility with Spirit and so this new version brings the required fix to make it compatible with iTunes 9.2. However no new feature has been added. It still does not work with iOS 4 and iPhone 4. Only iOS 3.1.3 and 3.1.2 for iPhone 3GS, 3G, 2G, iPod touch, and iOS 3.2 for iPad is supported.