PopSci seems to think that smartphones are the future of gaming, and that they'll overtake console gaming in the long run. Consoles become outdated within a few years of their release, whereas smartphones could potentially be backwards compatible as well as (realtively) powerful.
The future which PopSci envisions includes both mobile gamers, who play mostly simple app-based games, and more serious gamers, who would hook their phone up to a TV or something. They look at the ability to digitally download games, as well as the portability of smartphones, as the things which will set them ahead of standard consoles.
It's an interesting idea, and we're currently seeing instances of smartphones and tablets playing more complex games. I doubt this will be the death of PC gaming, but it could have some interesting implications for console gaming...
Let me know what you think.