- No one reads (books) on buses/trains anymore. Its very rare to see someone reading a book in SF in public transport. - No one looks around anymore. I seem like the only person who is looking out the window, or observing fellow passengers. I would say around 80% of the people have their headphones on, and are engrossed in their smartphone.
One funny incident stands out. I waked into Chipotle (restaurant), and everyone in line was staring into their smartphone. As soon as I walked in, everyone looked up, and in unison went back to their smartphone. It was synchronized enough to be like something from a parody.
I wouldn't say this is necessarily bad, just different than how it used to be. I have a smartphone, but not a data plan, so I don't use it outside of home. However, the maps and transit (to me) is a killer feature.