I tried applying the full redsn0w today over the tethered version. My iPod did fine until it rebooted, and now it's stuck cycling, where it will turn on, the screen will brighten, and then a waiting circle-y thingy will appear. It eventually flashes, and reboots. I managed to get it into recovery mode, but iTunes won't restore it, even when I "option+restore" to a non-JB firmware. It says: "Firmware is not compatible." I'm using the 2.2.1 5H11a firmware for the 2G. Can anyone help me?