Ettore, I'm cool. I'm just wondering why a bi-national global system of ELT sniffing satellites has not been mentioned among the pictures of people straining to look out of windows on maritime aircraft and surface ships bobbing through the water? Without saying whose ELT it is, shouldn't AN ELT be detected were it to go off? The little yellow ELT in our 172 then backs it up with a GPS signal reducing the accuracy circle to 50M. I sort of assumed the one in my old Jumbo had that too.
As for attaching Lat/Long to ACARS messages and live streaming FDR info, this soon to be system would appear to allay many concerns about proper ATC and position information, without breaks in coverage, full time, at long last:
Aireon Global Leadership
Perhaps there would be merit in eventually transmitting FDR-like information real time for certain critical parameters such as red EICAS stuff.