NFC, augmented reality and location and time based software sounds good, but I think that in truth we're still a way away from anything that utilises them to the extent that we could talk about a disruption.
The reason for this is, that most of these services require functions to be on that drain the battery very fast. Also, pop any device attached to GPS in your pocket and you're gonna lose your signal. At the latest the "screen locked" mode will cut off your connections on most current operating systems.
Also, Tomi Ahonen has shown with data, that people are never interested in sharing their own locations, but only interested in other people's locations, creating a improbable future for location-based services.
So I think that Foursquare and Layar (as examples) will be seperate apps that people use for fun. I also expect other "IRL games" to become more famous, but they won't come commonplace anytime soon.
I think the next things to change radically will probably be around UI paradigms. Apple kind of started it, and nothing counts more right now than a good UI. Companies are getting away with all kinds of shenanigans (for eg. WP7) as long as it looks good. My bet was that Nokia's MeeGo UI would begin to change the direction in which UI paradigms were going, but apparently it was reverted back to the icons-on-a-desktop + apps list paradigm that we're well familiar with. WP7 is disrupting this notion of a UI somewhat and what we're seeing on the WeTab out of the San Francisco summit looks to be re-thinking UI paradigms as well. So my bet of the next future disruption is on how things work and what they look like. Changes to the core of how and why we use our devices are still far away.