AT&T could lose about 26% of its iPhone customers to Verizon, survey says

About 26% of Apple iPhone owners on AT&T are planning to switch to Verizon once it begins offering the highly coveted smart phone next month, according to a consumer survey from ChangeWave Research. The majority of those iPhone owners -- about 41% -- will be making their switch in February, March or April. About 15% of T-Mobile users and about 10% of Sprint users said they're planning to head to Verizon to get an iPhone within the next 90 days, ChangeWave said. Of those looking to dump AT&T for Verizon, 42% cited poor reception and coverage as their top reason for leaving, while 27% said dropped calls was their main motive, the survey said.