Mobile Social Networking Doubles

About 10 percent of social network interactions now occur on mobile devices, compared to five percent 12 months ago, Forrester Research notes.

Interestingly, that is just about the same percentage of U.S. consumers who use mobile devices to interact with their email. According to a study by Epsilon, about nine percent of North American users do so.

Both of those trends have implications, bearing directly on how much people can substitute mobile access for fixed PC access to applications.

That in turn has implications for the design of Web services and applications that can be optimized for mobile use.