You've got a lot more room to work with now, so give us the data we crave, like storage meters, PIP, and network-enabled information overlays.

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The firm also updated its mapping technology to feature "City Lens" - an augmented reality app that overlays information about nearby restaurants and other points of interest over live footage of the surrounding area captured by the device's camera.

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Acknowledging the point, Nokia's chief executive, Stephen Elop, has stressed that mapping services such as its City Lens app - which overlays information about nearby points of interest, shops and restaurants over a view captured by a phone's camera - will remain exclusive to its own devices.

BBC: Nokia to offer free maps app and service for rival handsets

Google Glasses are already showing us ways in which visual recognition and augmented reality can be combined to provide a dizzying array of overlays and information.

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While virtual reality has tried (and till now failed) to entice us into a virtual world, augmented reality overlays digital, virtual information onto the real world with the help of a simple camera, screen and software in between.

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