What a horrible tragedy. I can't even start to think what the families of those lost are going through. Even if all they need is some closure from the search teams finding wreckage and therefore confirming the flight crashed into the ocean, recent news suggests that the wreckage found so far is probably not from that flight. What a horrible ordeal to go through.
The flight recorders may never be found. If they are recovered then hopefully the real reason for the tragedy will become clear and the airlines will become even safer than they are now. In the meantime, speculation seems to be the order of the day and unless the real reason for the aircraft's loss is found, we'll be hearing a lot from the crackpot conspiracy theorists. Everything from UFO abductions to government cover-ups will become widespread in the news media and internet and we'll have another generation of people who think critical thinking is something that someone else needs to do for them.
In the meantime, there's a fascinating albeit sobering analysis of the weather AF447 experienced on its final flight. The author is very clear about his opinion, he doesn't know what brought down the aircraft, but thinks that weather might have had something to do with it. It's a fascinating read for anyone interested in meteorology and the ITCZ.
Air France Flight 447: A detailed meteorological analysis.