Japanese youngsters are getting so addicted to Internet-linking cell phones that the government is starting a program warning parents and schools to limit their use among children.

The government is worried about how elementary and junior high school students are getting sucked into cyberspace crimes, spending long hours exchanging mobile e-mail and suffering other negative effects of cell phone overuse, Masaharu Kuba, a government official overseeing the initiative, said Tuesday.

"Japanese parents are giving cell phones to their children without giving it enough thought," he said. "In Japan, cell phones have become an expensive toy."

The recommendations have been submitted from an education reform panel to Prime Minister Yasuo Fukuda's administration, and were approved this week.

The panel is also asking Japanese makers to develop cell phones with only the talking function, and GPS, or global positioning system, a satellite-navigation feature that can help ensure a child's safety.

About a third of Japanese sixth graders have cell phones, while 60 percent of ninth graders have them, according to the education ministry.

Most mobile phones in Japan are sophisticated gadgets offering high-speed Internet access called 3G, for "third-generation."

But the panel said better filtering programming is needed for Internet access to protect children.

Some youngsters are spending hours at night on e-mail with their friends. One fad is "the 30 minute rule," in which a child who doesn't respond to e-mail within half an hour gets targeted and picked on by other schoolmates.

Full story: Japan urges limiting kids' cell phones