Users Younger than 35 are "Talking" Less than in 2009

Generally speaking, younger mobile users are spending less time talking on their mobiles in 2010 than they did in 2009.

Users 35 to 54 talk about as much as they did in 2009. Users 55 and older seem to be talking more in 2010 than they did in 2009.

As a rule, we can probably account for the trends by assuming younger users find texting more efficient than voice communications for many tasks, and that they therefore are substituting text for voice.

Older users might be finding they are more comfortable with mobile voice, or that the cost of doing so has fallen, and therefore are using it more. Also, some portion of the increase likely is driven by an increased volume of inbound calls to their mobiles.