I just activated my 2nd PS3. When I sign in, my Friends list shows as normal. After a Trophy sync, my trophies show. BUT where are all my psn messages?? Do they only go to the system that was activated at the time they were sent sent?? Where are the messages stored?
That's correct. I have two systems and only the messages I send or receive on system "A" are available on "A". They aren't available on "B". They are on your Hard drive apparently not PSN.