“Riffing on rumors of a Verizon iPhone, Morgan Stanley analyst Katy Huberty theorizes in a research note this morning that given the opportunity, nearly 17 percent of the carrier’s customers would upgrade to an iPhone,” John Paczkowski reports for AllThingsD. “‘According to our [Alphawise U.S. consumer iPhone survey], there is substantial pent up iPhone demand within the Verizon installed base as 16.8 percent of Verizon subscribers said they are ‘very likely’ to purchase an iPhone if offered on the Verizon Network,’ Huberty writes.”

“‘This 16.8 percent is higher than AT&T subscriber’s 14.6 percent extreme interest in the current AT&T iPhone,’ Huberty elaborates, ‘and well above the overall iPhone extreme interest of 7.5 percent,’” Paczkowski reports. “Assuming Verizon does add the iPhone to its smartphone lineup and that most of its subscribers who said they were ‘very likely’ to purchase the device do so over a two-year period, Huberty figures Verizon stands to sell about seven million to eight million iPhones annually.”

“Interestingly, Huberty’s forecast for Phone demand at Verizon does not assume sizable subscriber losses at AT&T. In her view, the end of the carrier’s iPhone-exclusivity deal won’t be the blow some observers claim. AT&T and Apple will obviously remain partners, she says,” Paczkowski reports. “In markets where the iPhone has gone from single-carrier to multiple-carrier distribution–France, for example–the carrier that lost exclusivity hasn’t suffered much at all.”

Paczkowski reports, “One final point: Huberty sees Apple shares hitting $400 sometime in 2011.”

Full article, with more info and charts, here.

[Thanks to MacDailyNews Readers "Fred Mertz" and "Andrew W." for the heads up.]