Flashing G1 Partitions

This is not for the faint of heart. There is a lot of potential to really screw your device. JesusFreak over at xda has been playing around with reflashing partitions. The G1 comes with the binary to flash the partitions; you just simply tell it what partition and give it an img file to flash. Check out the full thread over at xda -- http://forum.xda-developers.com/showthread.php?t=442831