What about ADS?
I'm sure AF447 was ADS equipped. We do know that CPDLC and ADS are only on test in the Atlantico and Dakar FIR. We have being using CPDLC with Dakar on a test basis for quite a long time now, and one logs-in 45 to 15 minutes before the entry point. Would it be possible to know if Atlantico or at least Senegalese ATC have had any ADS reports from the AF447? That would help...