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Microsoft Experiments With Mobile Social Networking: Page 3 of 4

Users can form private or public groups, which means people can join the latter by simply clicking "join" on the UI. People can also search public groups by interest.

In creating groups, people first enter a name and description, and choose who they want to join by entering their phone numbers, selecting numbers from the phone's address book, or choosing members from existing groups.

For security purposes, Microsoft does not allow users to register more than one phone number and access the same account content from the separate phones.

The use of data services on mobile phones has been slow to take off in general, except among young adults. Fully, 45 percent of Gen Yers who have mobile phones use data services, led by text messaging, ring tones and games.

Nevertheless, that could change as the number of people with smart phones capable of advanced data services like SLAM increases. Global smart-phone shipments soared by 75.5 percent in the first half of the year to 34.7 million units, with Japan the largest market, Gartner said. Driving sales was consumers' desire for a fashionable device, and advances in messaging and personal information management software.

Smart phone shipments, however, still account for a small percentage of the hundreds of millions of mobile phones shipped each year. Worldwide shipments of phones last year totaled 825.5 million units, according to International Data Corp.