There's no reason Cummins can't do at least as well as Caterpillar's engine group, which typically posted 9% operating margins before its acquisition of Britain's Perkins Engine.

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In addition, the two companies will work to foster a developer community through Google App Engine and the Android operating system.

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News portal Sina.com.ch reported recently that Apple was considering embedding China search engine Baidu (BIDU) in its operating system next month.

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