"Our research points toward solid momentum for the iPhone 4S through the calendar first quarter," he writes in a research note. "Sales seem to be benefiting from international rollouts, pent-up demand and overall excitement around the unmatched Apple ecosystem (apps, iCloud, Siri, iOS, etc.). By the calendar 2012 second half, we believe momentum can get even stronger with the launch of the iPhone 5. This new product could accelerate Apple's momentum vs. competitors and increase its share of the wallet in the tech space even further as well. We wouldn't be surprised to see iPhone 5 launched late in the September 2012 quarter featuring a new design, a faster processor and 4G LTE capabilities."