1. OK, that's the first confirmation of a bomb threat I've seen by Air France. (Although it WAS made against a different flight/routing...)
2. I'm not sure what info from the Wikipedia article on AA587 you cited that you think supports your assertion that the A300 and A330 are the same aircraft type, but one of the paragraphs in that article completely refutes this erroneous presumption:
"The Airbus A300 and later A310 do not operate on a fly-by-wire flight control system, instead using conventional mechanical flight controls."
As I stated above, they are two different aircraft, and do not share a common control system.
Does this mean that it wasn't a bomb, or was not related to a fault in the aircraft?
No, I actually think these are the two most likely scenarios (my gut says it's a problem with the flight control "LAWS" coupled with some mistake by the flight crew, based on incorrect instrument readings).
I think AF and the media simply do not know what happened (as of the latest reports, there has been no CONFIRMED wreckage, and the last stuff the Brazilian Navy thought was from AF447 was conclusively determined to NOT be from this aircraft), so there are a lot of theories floating around.
Apparently the speed sensors were also scheduled for replacement with ones less vulnerable to icing.
http://www.bloomberg.com/apps/news?pid=20601087&sid=atCz81jNNuUU
This may have played a role in the crew's actions as well, as entering a storm at the wrong speed could cause the aircraft to overstress and break up.
Until they find the FDR and CVR((the black boxes, fairly likely) or a substantial amount of the wreckage (unlikely), there is no real way of knowing.
Doc