Residents of the city that never sleeps - or turns off its phones - scoffed at the results of a new Experian Marketing Services study revealing that Americans spend an average of 58 minutes a day on their cell phones.

"Oh please. I'm on it all day. Are you kidding me?" said Kim Freeman, 37, a customer service rep from the South Bronx who also works in a nursing home.

"I spend 58 minutes an hour on it!" said Spencer Markinson, 24, a tech job headhunter said of his iPhone.

Globalization and technology has sharpened competition and eliminated the discrete eight-hour work day, with one's personal and professional life inextricably entwined together in one's phone, explained Markinson, who lives on the Upper West Side. In vetting job candidates, he expects a response to an email or text sent within an hour. Taking longer "is either a sign of disrespect or shows (a candidate) may not be up to date with technology," he said. "I can't work with people who don't respond quickly," because employers prize immediacy, he said.

"You could literally lose $10,000 if you don't have your phone," added Shannone (cq) Holt, a model who lives in the Financial District and takes her iPhone to bed and the bathroom. If a designer - in Milan or Cape Town - puts out a call for models, "who ever gets there fastest has a better chance of booking the job," said Holt.

We are complicit in our enslavement by palm-sized devices because we find the promise of new information and opportunities popping up in our pocket "enchanting," said Robert Thompson, professor of popular culture at Syracuse University. Smart phones "are not just devices of employment torture, but have games and let you order a blouse or text your friends," he said.

Much of the time spent on smart phones is multitasking while the user is also doing something else, added Jeffrey M. Stanton, a professor of information studies at Syracuse University. Experian found that iPhone users spend more time on their devices (an average of 85 minutes a day) than Android users (49 minutes). The increased devotion of iPhone users has big implications for advertisers and app developers, Stanton added.

Another new study from Clear Channel Media & Entertainment revealed that while 70 percent of smart phone owners feel "connected" most or all of the time, they are split on connectivity's benefits, with 51 percent saying they "love it" and 49 percent saying connection "has its pluses and minuses." Freeman, the customer service rep and nursing home worker, observed that texting, emailing and social networking have come to replace in person socializing. Her battered iPhone is a lifeline for gossip and "street talk" but "it made me lazy. I used to run to Brooklyn to see my friends. Now we just text."

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5th teen charged in gang assault ... Oak Chalet to close ... Visiting Christmasland in Deer Park Credit: Newsday

Updated 33 minutes ago Rob Reiner's son latest charges ... 5th teen charged in gang assault ... 2 people, dog rescued from frigid waters ... LI Works: Model trains

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