YiPhone is a jailbreak being created by George Hotz, aka geohotz, for the iPhone and iPhone 3G. It will not unlock the iPhone 3G being that there are no known exploits for it. The official site of YiPhone is http://yiphone.org. As of now, it has a mysterious countdown timer in Wingdings. It will end at 6:00 PM on July 15, a rumored released date for YiPhone. Pwnage is a jailbreak / unlocker being created by the iPhone Dev Team, for the iPhone and iPod touch. It will jailbreak and unlock iPhones through an exploit in iBoot. It is planned to be released soon. You can see a mysterious timer for it at http://ihazsupper.com. The official site of the iPhone Dev Team is http://iphone-dev.org. So... that should clear things up for now.