since the main topic is unlock, here is my small feedback and suggestion:
I'm using the 2.1 internal only version.
new image is in .dsk format, win32diskimage burn it without complain (just need to select *.* on format extension)
firmware is smooth!
is it possible to get an nolimit time for display/shutdown (set to off?) option on gmenu2x?
without rebooting, could we have the option to charge or transfert when we plug the usb cable?
keep up the good work!