Well having flown BA777s and MM and also had the guys as my copilots, sometimes odd things happened to the displays. On venturing into the cabin there was always someone using a laptop. I've been retired a while now so will leave it to the pprune experts, but my first thought on hearing the news was that cellphones or laptops were suspects. Maybe not, but also maybe not lots of other things posted here too.
I think that we are all concerned that the AAIB may never actually get to the bottom of it.
I wish they would hurry up, then we could all get some sleep!