yes you can get the drive key in the same way as the xenon
The "Drive-Key" is placed into the CPU also the "CPU-Key" or into the Drives hardware.What here is done will be a x360 Hardware Hack not a Drive Hack!!!
Thats completely diff.You only see a NAND and meaning it is the Drive´s NAND?
This is the Main Board NAND and used for the System FW
Sooo... this is a x360 Hardware Hack and in same conditions like the psp cfw or the Wii cfw but with the diff that this will be the beginning.A nice small ELF loader and a few apps like emus and sms thingy are the only available one to time.
But just wait and relaxe... with time a x360 devkit will appear and HB apps like on the other both sys´s will float the scene