There are other factors at play, of course; less wireless penetration in China than in the US, that black/gray market opportunity, the mandatory two-year contract. But—as * learned, in part, with the Nexus One—important to remember the impact that a carrier can have on the fate of a phone, and that unpopular partners lead to unpopular products.
不过除此之外，还存在着其他的因素。例如：中国的无线覆盖率远低于美国；黑市与水货市场交易猖獗；以及购买iPhone需强制性签约（中国联通）两年服务不够人性化。但是，正如在推出Nexus第一代中所吸取的教训一样，苹果必须谨记：当地承销商的影响力甚至可以决定产品销售的最终命运--营销搭档不受欢迎，产品就不能流行。