Martyn WilliamsSenior U.S. Correspondent, IDG News Service

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Martyn Williams covers Silicon Valley and general technology breaking news for the IDG News Service, and is based in San Francisco.

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Samsung to appeal Apple patent loss to Supreme Court

Samsung Electronics plans a last-ditch appeal to the U.S. Supreme Court to avoid paying hundreds of millions of dollars in fines for infringing Apple patents, but the chances of success don't appear high.

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Here's how Apple's 'mysterious' Frank Fearon really signs his email

The world of Frank Fearon, an Apple engineer who is thought to be working on autonomous car technology, isn't perhaps as cloak and dagger as you were told.

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Car and pedestrian collision? There'll soon be an app for that

The new system will alert drivers and pedestrians of potential collisions.

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After photo leak, North Korea said to block Instagram

Fire at iconic hotel could be trigger for the country's first known Internet filter.

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Uber driver deemed an employee by California Labor Commission

The company was ordered to reimburse a single driver $4,152, but the decision could completely blow up Uber's business model.

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China is a fast-growing gold mine for Apple

So far in 2015, Apple has sold more iPhones in China than in the United States.

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China, iPhone 6 lead another record Apple quarter

The App Store and Mac businesses saw big increases too.

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Apple Pay rival CurrentC coming in mid-2015

The payments platform operated by major US retailers is testing Bluetooth and barcode technologies.

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Confusion but hope as U.S. faces mobile payment revolution

In six months, new card regulations could usher in greater acceptance of Apple Pay and its competitors.

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Austin declared a drone-free zone during SXSW

Folks don't like drones in Texas, local police chief warns.

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Confirmed: Google plans its own U.S. mobile service

But Google's Sundar Pichai says it doesn't intend to become a full-service cellular carrier, instead likening the service to its Nexus mobile devices.

on pcworld.com

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Samsung to launch Samsung Pay mobile payments system in challenge to Google, Apple

The Android smartphone maker will launch Samsung Pay in the US in mid 2015

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Smartphone thefts plummet after kill-switch introduction

Thefts and robberies of smartphones fell in three big cities with iPhones leading the pack

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With employee help, ID theft ring allegedly stole $700,000 in Apple gift cards

Five people have been indicted in scheme that took advantage of Apple 'instant credit' gift cards.

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New iOS spyware steals pictures, data, and more even from non-jailbroken iPhones

Spyware from a pro-Russian group is targeting iPhones, whether they're jailbroken or not, says Trend Micro