Despite AT&T's (T) claims, Verizon (VZ) has been building up its network to handle iPhone-...

|By:, SA News Editor

Despite AT&T's (T) claims, Verizon (VZ) has been building up its network to handle iPhone- (AAPL) like devices handily, say sources. Unlike AT&T, Verizon feels its network is robust enough to offer unlimited data-usage plans if it does start selling iPhones this month, as rumored. iPhone traffic has hurt AT&T's service levels.