It's not the Captivate, it's not the Fascinate, nor is it the Epic 4G Touch. Samsung Electronics Co. wants you to know that its new flagship smartphone for the U.S. market is called the Galaxy S III.

On Monday, the world's leading smartphone maker is revealing U.S. launch plans for the Galaxy S III. The rollout is Samsung's latest effort to challenge Apple Inc. at the high end of the smartphone market and reflects the Korean electronics giant's growing clout with wireless carriers and consumers.

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