Consumer Intelligence Research Partners, LLC (CIRP), today released research on the installed based of iPhones in the USA. CIRP finds that as of the end of the September 2015 quarter, 101 million iPhones were in use in the USA, including 58 million iPhone 6 and 6 Plus and 4 million iPhone 6s and 6s Plus models (Chart 1).“The analysis shows the continued strength of the iPhone 6 and 6 Plus, now one year old,†said Mike Levin, Partner and Co-Founder of CIRP, in the statement. “We estimate a combined 60 million of these flagship phones sold in the US from...