Survey: iPhone retention 94% vs. Android 47% by Philip Elmer-DeWitt @FortuneMagazine August 1, 2011, 12:41 PM EDT E-mail Tweet Facebook Google Plus Linkedin Share icons Finds high pent up demand for iPhone 5 among Verizon subscribers and Android owners It’s only a tiny sample, so large conclusions must not be drawn. But the survey results reported in Gene Munster’s note to Piper Jaffray clients Monday suggest that the pent-up demand for Apple’s AAPL next iPhone could be even stronger than suspected. In a survey of 216 mobile phone users conducted one recent week in Minneapolis ( in “food courts, on the street, near the entrance of a baseball stadium on a game day”), Munster found evidence that the iPhone’s market share could by his estimate double in the next round of smartphone purchases. Specifically he found: Among all respondents 64% indicated that they plan to buy an iPhone when they purchase a new phone. Of those surveyed, 29% already have iPhones and 64% expect their next phone to be an iPhone; 17% have an Android device and 17% also indicated they expect their next phone to be an Android. Among those who do not have an iPhone but plan to buy an iPhone next, 60% are specifically waiting for the iPhone 5 Of those Verizon subs who do not have an iPhone but plan to buy an iPhone next, 74% are specifically waiting for the iPhone 5, At AT&T, that same metric is 53%. Among existing iPhone users, 94% expect to buy another iPhone (6% expect to switch to Android) Among existing Android users 47% expect to buy another Android smartphone (42% expect to switch to iPhone). [Emphasis ours.] Among all BlackBerry users just 26% expect to buy another BlackBerry, 67% expect to buy an iPhone and 3% expect to buy an Android device. “In other words,” Munster concludes, “our survey suggests Apple will take share from BlackBerry and, to a lesser degree, Android as well as other smartphones and feature phones in the future. ” Below: The spreadsheet from which the pie charts were drawn.