More from Canaccord: Walkley also says his May checks indicate the iPhone (AAPL -0.3%) remains the top-selling U.S. smartphone, but that "gradual share losses" have occurred due to the iPhone 4S' age. He only expects 27M iPhone sales in the June quarter (down from 35.1M in the March quarter), but declares Apple's well-positioned for future growth due to the next-gen iPhone, new iPad, upcoming MacBook refreshes, and an expected iTV in 2013. (previous)