Jesus you guys,
Obviously by now, they KNOW what happened. This is 2008. Obviously the implications are so uncomfortable that they're going to drag out this investigation ten years like they did TWA 800.
What I think happened (and it is just my opinion only) is that they are appalled at the fact the engines didn't respond to pilot input and the FADEC vender is going to release a software "update" to all 777 operators and you or I will never be told what caused these engines not to respond.
THIS IS A SOFTWARE PROBLEM in my humble opinion. I humbly ask those programers that know to anonymously post their knowledge to help aviation safety.
If you nerds ever wanted to be batman now is your chance.