Today I was scrolling through the sources in Pwnage and my screen froze. The iPod would not turn off or respond to the home key. In the end I found I could turn it off by holding the power key and the home key down for a few seconds. I could turn it on again by pressing the power key. That is all it will do. I have tried all the solutions to freezing I could find in these forums, but none of them seemed to work for me. How they fail is that iTunes will not recognize the iPod's existence. If it did I would happily accept the loss of all my extra material entailed by a restore. If no-one can help it appears that I may have succeeded in "bricking my iPod touch.