According to his research, 94% of iPhone owners plan on buying another iPhone, while just 47% of Android owners plan on buying another Android phone. 42% of Android owners think they're going to switch to an iPhone.
As for BlackBerry owners, just 26% expect to buy another one. 67% plan on buying an iPhone.
Munster also sees great "pent-up demand" for the newest iPhone from Verizon customers since Verizon owners have only been able to buy the iPhone 4, which was a six-month old phone when it hit the carrier's shelves. People held off on buying one since they thought a new phone was coming in a few months.
For these reasons, Munster thinks Apple's share of the U.S. smartphone market will explode when the iPhone 5 hits Verizon's shelves, which might not happen until October.
Here are the charts from the Munster on his survey:


Piper Jaffray Smartphone Survey August 2011
Image: Piper Jaffray




Piper Jaffray Smartphone Survey August 2011
Image: Piper Jaffray