A fascination topic to think about. I watched the movie The Impossible and indeed, life can stop at any moment. When I am gone, the memories that were captured by a system like PassedOn will probably give a big smile on the faces of those who I loved most as it will contain information that I never spoke about and many years of memories for them that they never knew existed.
Good concept and a good reminder! It might be nice though if I could set the actual dates for release (I may not want to release all directly after I have left this world)