Market research firm uSamp recorded the responses of more than 700 current smartphone owners on the Verizon network. According to those responses, around 66% of BlackBerry users on Verizon plan to switch, and around 44% of Android smartphone users plan to spring for the iPhone 4 on their current network.
Altogether, 54% of the Verizon-using, smartphone-owning respondents said they planned to switch to the Verizon iPhone.
When asked why they would switch, respondents cited the iOS mobile interface (60%), the device's memory (43%), the camera (41%), the iPhone media features (51%), and the web browser (58%).
uSamp also said 26% of current AT&T iPhone users would switch to Verizon.
In Mashable's own poll, we found that a great many AT&T iPhone users plan to switch to Verizon, too. With a sample size of more than 5,000 respondents, 30% said they would switch as soon as possible, and 15% said they would switch as soon as their current contract was expired. A further 23% said they'd switch when the next version of the iPhone became available on Verizon.
All this phone-hopping and network-switching is great news for Apple and Verizon; however, the new bandwidth requirements on Verizon's network might put a damper on new Verizon iPhone users' experience. The company plans to throttle download speeds for the top 5% of its users -- many or most of whom are likely to be on the new iPhones.