Thanks for the info Eric, sure looks a step ahead of what we can see on current airliners, although it seems that the battery lasts only a couple of days, sure it must be enough, as it is designed to transmit GPS coordinates to satellites, then any search & rescue operation can be launched right away.
Of course, the cost implications mean we may not see this as standard on airliners before or long time.
The revenue made on oil rigs seems to dictate the use of this nice equipment; passenger revenue on airliners seems to be the contrary... oil worth more than lives
