Maybe its a new GUI 360 skin editor, for the xbox, as its to be released tomorrow in conjunction with MC360.
I could be full of crap, but consider this:
Their first 3 recommended sites contain a link to blackbolts site.. which is nothing but cosmetic afaik. Blackbolt also is releasing his skin tomorrow, on june 6th. There are plenty more technical xbox sites out there far more in depth than blackbolts.. no offence, hes a supurb skinner - but relates nothing to do with 360 hardware, rather actual xbox hardware.
So far they have only said things about the original xbox, and nothing to do with the hardware of the 360 - other than what is pretty much common knowledge. they didn't comment on the public firmware hack by c4e or anything, and no communication was made through email as stated.
Guess we will find out in 12 hr or less. So many things supposed to happen tomorrow, Devil 360 site releases their news, blackbolt releases mc360, devil takes over earth, the skin editor for mc360... should be an interesting day.
Hopefully its an expansion on the hacking side for 360 rather than a new skin or skinning utility for the original xbox. I have to say they have a nice design for the site at the least.