Melissa RiofrioExecutive Editor, PCWorld

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Melissa Riofrio spent her formative journalistic years reviewing some of the biggest iron at PCWorld--desktops, laptops, storage, printers--and she continued to focus on hardware testing during stints at Computer Currents and CNET. Currently, in addition to leading PCWorld’s content direction, she covers productivity laptops and Chromebooks, and car tech.

toyota mirai san francisco exterior

Here's everything Toyota will give you if you buy the hydrogen-powered Mirai

How does free fuel sound to you? Toyota's Mirai needs every early adopter it can get, so the company's sweetening the pot with perks like that, plus it's giving away a passel of patents.

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Toyota wants more hydrogen cars, and it's giving away 5,680 patents to make it happen

One word: Fuel. If Toyota wants its hydrogen cars to succeed, it needs more hydrogen filling stations. Giving away patents will encourage more cars and therefore more stations.

thinkware x500 dash cam

Thinkware's X500 dash cam looks out for you with fancy safety features

Most dash cams just record stuff, but the X500 also watches the road and alerts you if you stray from your lane or get too close to cars ahead of you. Not bad for a $250 product.

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The connected car’s consumer future: GM OnStar 4G LTE can find donuts, parking, or a hotel

Maintenance alerts. Coupon offers. Even Priceline room reservations. Using connectivity to help drivers find services is a big part of GM's plans for its OnStar program and its growing fleet of 4G-LTE-enabled cars.

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Samsung's Milk VR app brings the virtual reality promise ever closer with full-motion video

“This. I want to see more of this,” Hayden Dingman wrote, after seeing a full-motion video VR demo earlier this year. Well, now it's here, for Gear VR users anyway--one tantalizing step closer to real-life experience.

Tesla's three-minute battery swap pilot for Model S cars sets a new bar for EV charging

The battery-swap service will take about three minutes and cost about as much as a full tank of premium fuel, but it'll be much faster than using Tesla's free Supercharging stations.

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Are HP's new EliteBooks too cool to be corporate?

The latest generation includes carbon-fiber chassis designs, SSDs, versatile displays, and tantalizing hints of future Intel CPUs.

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Report: Microsoft will unveil Windows 10's new consumer features in January

Windows needs to win back the hearts and minds of regular folk. According to The Verge, we'll see how it plans to do that at an early-2015 event.

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HP's Omen laptop seeks gaming cred with hot hardware that runs cool

HP says dual fans and a huge bottom vent let the Omen go full-bore with its core i7 CPU and Nvidia GTX GPU. But will it make Razer or Alienware fans think twice?

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HP’s Sprout is a double touchscreen PC that makes the virtual feel far more real

With powerful imaging tech above, and a touch-enabled work surface below, HP's new $1900 computer is extremely, vividly, palpably hands-on.

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HP’s rumored 'Sprout PC' sure sounds similar to this oddball printer from 2011

Could the 3D scanner on top of HP's TopShot LaserJet Pro M275 be the roots of the fabled Sprout PC? Perhaps we'll find out soon.

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This is not a toy: $250 Samsung Chromebook 2 has Intel CPU, fanless design, aluminum reinforcement

Chromebooks are moving beyond basic browsing. Samsung's $250, aluminum-reinforced Chromebook 2 is designed to take a school's worth of rough handling, and it'll appeal to consumers as well.

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Samsung Galaxy Note 4 cozies up to cars by adding MirrorLink compatibility

With MirrorLink, this device will be able to plug-and-play with compatible cars and apps, making driving with a phone much safer. Android Auto? Same deal, but it’s not here yet (ahem).