Sat 30 Oct 2004
This survey corroborates a finding from some research we did this summer: that the secondary functions of even basic mobile phones are becoming more and more important. In particular we found that people seem aware of remembering telephone numbers much less than they used to, instead relying on their phone’s address book.
Another finding that doesn’t show up in this survey is the importance of the cell phone for keeping track of time. More than half of the people we talked to said their mobile phone is the authoritative source of time in their everyday lives.

[Source: Jupiter Research/Ipsos-Insight Consumer Survey]
(Apologies - I can’t find a direct link to the survey)
via And Far Away…