Springsteen sparked imaginations by looking back as he simultaneously barreled ahead, full-throttle down the American cultural highway.

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If the sky gets too crowded, they order incoming planes to throttle down from 725kph to 400kph hundreds of kilometers from the airport, delaying their arrival.

FORBES: Free flight

Multiplayer game enthusiasts and home Webmasters complain bitterly about current efforts to throttle them down.

CNN: OPINION: The push is on to deploy high-speed, always-on residential Internet access

During a nostalgic weekend, Kevin Schwantz was on hand to regale us with the inside story of his final career victory here in 1994, when he had to hold the throttle open down the straights with his left hand - despite a dislocated wrist - just to shake some feeling back into his fractured right hand.

BBC: Matt Roberts' MotoGP column

Electric boost is also available when a kick-down switch in the throttle pedal is activated by the driver during acceleration.

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Huang sat us down in front of a Kindle Fire HD and an HDTV, handing us the Atlas, Green Throttle's dual-analog gamepad.

ENGADGET: Green Throttle Games Atlas and Arena hands-on (video)