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One of the main features of the Android 4.2 operating system Google launched late last month, is a multi-user accounts allow multiple users using a single device with a different account.
However, in his description of the Android 4.2, emphatically stated that this feature will only be available on tablets, not smartphones. Why is that?
The answer might be found in a patent filed by Nokia many years ago, in 2004. The company acquired the rights to the patent of it a year later.
Nokia patent relates to the use of multiple user accounts in a single mobile device.
Abstract reads: "Mobile phones are designed to be worn several different users in different time. Individual users can set the device to operate as desired in each account. Takes to change your account simply create a user account option on the prompt that appears on the screen . "
Patent and Trademark Office of the United States (USPTO) states that the patent holder is Tim O'Cock and Symbian Limited under Nokia.

