I saw “Blackberry” yesterday and it was a really good experience putting you in the context of those times.
There is one scene where they type a message and wait for it to show up on another device. After a few seconds, it is there and every engineer in the room celebrates.
Then, management/sales guy comes in and they tell about what they’ve just done. He goes yeah, nice, but we do it already, it’s called SMS.
The engineers then say that he is not getting the point. It was a message sent through the network using data, 0 dollars and all and salesman’s eye get brighter.