My 
essay on iPhones and American mobility was just made available on academiccommons.org.  At a recent executive briefing that I attended at Apple's campus in San Jose attendees were promoting the growth in mobile learning.  There's a lot to be said for learning-on-the-move and the 
2010 Horizon Report brings the trend to light.  But some types of learning are still facilitated by more place-bound activities.  I explore these tensions in the essay.