This is compltly my hunch but...
i fear that team executer, are turning there attention to the X3 chip for 1.6 xboxes?. and ignoring the x2.6 for 1.6/b xboxes as they sure have taken a long time to come up with it.
im not a devloper or programmer, but i am very baffled as to why they have not released such a bios yet.... surley it cant be hugley differnt in code to the bios used in X3 bios, apart from its size, but the x2 dont have a bios live feature so i cant see why they have not made a revision of bios for x2.6 1.6 xboxes..
oh well, we sit and wounder...