"Usage patterns vary greatly among youth throughout the world, demonstrating how culture, economy and age can all play a large part in mobile behavior. These factors affect device selection, payment and usage," said market researcher Nielsen in a new study on youth and cellphone usage published on January 11.

According to the study, Chinese youth are the heaviest mobile internet users while youth in the US can't stop sending emails.

73 percent of Chinese mobile users aged 15-24 said they used mobile internet in the last 30 days compared to only 48 percent of US youth and 46 percent of youth in the UK.

It was my understanding that youth in the US have abandoned email for shorter more instant forms of communication, or at least that was the prevailing wisdom from other studies I have read. From my observations Facebook and messaging systems seem more popular.

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