Fletcher, a physician who formerly served in the state House, previously ran for Congress in 1996.

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Previously O2 and Vodafone had expressed anger that rival network EE - formerly known as Everything Everywhere - had been given permission to use its existing 1, 800MHz spectrum to launch a 4G service earlier.

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Co-founders Eric Ho, formerly in digital partnerships at American Express, and Stanley Wong, previously an engineer at Sony, started working on Husky Chat full-time in June after a few months of kicking around ideas.

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