
The Yankee Group's recent mobile survey data (n=3,425 US respondents), which was used to draw the inaccurate conclusion that nearly 75% of iPhone users "very satisfied" with AT&T, offers a number of interesting other data points.
Yankee categorizes mobile subscribers into three groups: general mobile (feature) phone users, smartphone users and iPhone users. The following are top-level data released by Yankee Analyst Carl Howe in a post seeking to correct CNN's misconstruction of the survey data:
To reduce this data to its simplest conclusions, iPhone brand loyalty is stronger than Android and RIM. Other surveys have offered similar if slightly different findings on loyalty:
In addition, Yankee found the following regarding daily mobile Internet access by device category: