According to data from the latest ChangeWave smartphone survey, more than half of all respondents planning to buy a smartphone in the next 90 days are planning to purchase an iPhone. 52% of respondents said they planned to purchase an iPhone, a dramatic 21% increase from the March survey. Following Apple was HTC, with 19% of respondents planning to purchase one of its phones, Motorola, with 9%, and RIM with 6%. Notably, both Motorola and RIM saw significant decreases from March, with Motorola down 7% and RIM falling 8%. In addition, Apple continued to lead in cell phone customer satisfaction, with 73% of iPhone customers saying that they are “very satisfied” with their device. ChangeWave’s numbers are based on a survey of 4,028 consumers, completed June 24.