Kay wants to take computing forward with his next great invention, an operating system that puts the user in a three-dimensional graphic world with scores of other users, all computing collaboratively and communicating through audio and visual messaging.

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The BBM messaging app can now make audio and video calls as well as being able to share what is on one person's screen with the other user's device.

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Home also did not integrate some of multimedia features that many messaging apps boast, such as video and audio sharing.

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We did have one message simply lose audio halfway through, but we're willing to chalk that up to video messaging still being early in development.

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Because of the ability to share applications, home networks will eventually lead to new "lifestyle applications" -- including shared family scheduling, family messaging, distance learning, and multimedia entertainment applications such as multiplayer gaming and whole-house audio on demand, the companies said.

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The UI supports a rich set of services, including phone calls, text messaging with vocal read-out, navigation, object recognition, social network services, remote assistance, audio-book reading, and other leisure and entertainment offerings.

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