A new report/survey from Consumer Intelligence Research Partners (http://www.cirpllc.com/) — as reported by “AppleInsider” (http://www.appleinsider.com) — found that 21% of iPhone 4S buyers chose Apple’s highest capacity 64GB model, while 36% of users migrated from another platform, such as Android, BlackBerry or Palm.

The data comes from a survey of customers that bought an iPhone in October, November and December of 2011. From an initial response of 6,316 subjects, CIRP surveyed 365 qualified people for its analysis.

The survey also found that AT&T, Verizon and Sprint have maintained their market shares consistently among iPhone owners. However, the availability of the iPhone has also helped the three largest wireless providers in the U.S. take customers from other carriers that do not over the iPhone, most notably T-Mobile.

Consumer Intelligence Research Partners provides equity securities research to the investment community. Read more about their report at http://macte.ch/2mHTy .