The shift towards public phone usage — More people may be heard playing music or videos on their phones in public spaces, potentially leading to changes in local noise regulations.
Increased awareness of personal vs. communal space norms — Public behavior guidelines might evolve to address the new normal of audible phone use, affecting social interactions and urban etiquette.
I saw the BBC News headline: "Why playing your phone out loud in public might become the new normal" And I read the story. To which the only reasonable response is: I was discussing this with The Man Of Cheese last week.