Obviously, everything written on that blackboard, from (and including) "The key for the SYSTEM DISK is:" and to (and including)
www.ziphone.org is NOT something that was written on that board by Einstein, but was superimposed there. The stuff in the middle is some sort of hex address code (I have NO idea what it is), but apparently, the "Until then, enjoy the KEY" comment is some sort of humorous reference to all that. Seems it's some sort of "inside" joke or something of that nature. Or maybe "the KEY" is a reference to ZiPhone jailbreak itself.
Anybody else got any other ideas?