The current iPhone OS (3.0) only allows a few core apps, such as iPod and Mail, to run in the background while another app is active.

目前3.0版本只允许少数核心应用程序，如iPod和邮件，在后台运行而另一个应用程序处于活动的状态。

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He said their core focus included "home page, mail, search, and mobile."

他说公司的核心业务包括了“主页、电邮、搜索和移动业务”。

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If the basic issue is productivity like Web browsing, word processing and E-mail, you don't need all that much. A dual-core processor is good enough.

“如果你所做到仅仅是类似浏览网页、文字处理，以及电子邮件这类的基本应用，那么你根本不需要过于强大的性能，双核处理器就已经绰绰有余了”。

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"It's clear that the more delivery work which is done by private companies, the less there will be for Royal Mail, and core services could suffer with higher prices and lower service standards, " said CWU deputy general secretary Dave Ward.

BBC: Royal Mail faces a spiral of decline, chief executive says

Traffic for core products such as search and mail were down 24% and 12%, respectively, in December 2012 compared to December 2011.

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