What’s not to like in this yet-another-useful-guide-to-what-comes-next by the Pew Internet and American Life project. In order to fully appreciate this space, you also have to read the Teens and Mobile Phones report as well. Hint: teens are not into talking on the phone.
In the meantime, the theme of examining different groups’ use of mobile has been expanded and given the emphasis it deserves, in my opinion. Look at this (graphics by me based on the data):
Americans’ Access to the Internet: 2010