iPhone已经预定6月上市，而此前Leopard系统（又称美洲豹）也是在这个月份有发布的，这样在一个月内对两项产品做重大更新，或许Apple担心自己忙不过来，最新的官方声明表示苹果公司已经决定将Leopard新系统的发布日期从6月份推迟到10月份，原因是部分关键的设计人员和资源需要暂时调整进入iPhone团队。而后苹果股价也做出反应，开盘后即下跌三个百分点至89.51美元：

CUPERTINO, Calif., April 12 /PRNewswire-FirstCall/ -- Apple today released the following statement: iPhone has already passed several of its required certification tests and is on schedule to ship in late June as planned. We can't wait until customers get their hands (and fingers) on it and experience what a revolutionary and magical product it is.

However, iPhone contains the most sophisticated software ever shipped on a mobile device, and finishing it on time has not come without a price -- we had to borrow some key software engineering and QA resources from our Mac OS(R) X team, and as a result we will not be able to release Leopard at our Worldwide Developers Conference in early June as planned.

While Leopard's features will be complete by then, we cannot deliver the quality release that we and our customers expect from us. We now plan to show our developers a near final version of Leopard at the conference, give them a beta copy to take home so they can do their final testing, and ship Leopard in October. We think it will be well worth the wait. Life often presents tradeoffs, and in this case we're sure we've made the right ones.