Tim - I am going to leave these where they are for now.
We need to get back to the topic of "White vs Red - The Civil War"
However, my thought was that a cell phone and a lap top and an Ipod might be so just so much hunks of useless electronics as the technology to run them would not have yet been invented and there would be nothing - no Internet and no satellites in orbit - to connect to.
As for a copy of a book, that might work, but it would depend on the mind set of the Imperial Family. They might just see it as a "fake".
I am not going to go on with this kind of posting, but, as much as I love, the "what if", there is a section for it and you can start a new thread about saving the family by time travel there. If you do, I will then send your posts to that new thread. There is probably one there already.
However, I have said this before. I would imagine that if Arch Duke Franz Ferdinand could know that his assassination was the cause of the start of the Great War, he would be rolling in laughter. He had no illusions as to Emperor Franz Joseph's opinion of him and he knew that he was not important enough to the Emperor for Franz Joseph to even care about his education as the future Emperor, let alone to start a war over his death.
Austria-Hungary was looking for a way to justify a war of expansion and Franz Ferdinand's death unexpectedly gave everyone the opening they were looking for. One day Franz Ferdinand was the stone in the shoe of Franz Joseph and the next he was the "cause celebre" that started "The War to End all Wars".
So back to the topic.