What device brand Google will choose for the Nexus 5 remains a mystery, but in a new Key Lime Pie concept, we get a glimpse of what the stock Android interface would be, highlighting the smartphone's basic functions and features.

For Toshe Andonov, the KLP that will govern the Nexus 5's overall behaviour will focus on multitasking packed in a mobile gadget that latest reports said will sport a screen size between 4.5-inch and 5.2-inch.

The new KLP render also pictured an Android gadget's smoother integration with Google Now, an incarnation of the reliable digital assistant that has become an indispensable tool both in the Android and iOS world.

The design obviously takes a page from the recent Apple platform revamp that resulted to the simpler and straightforward iOS 7 - both in look and functions. The KLP concept author is clearly a fan of minimalism that creates bigger space for optimal gadget operation.

Part of the changes is the inclusion of smart homescreen that allows the pulling up of specific window apps for quick access to the desired smartphone functions and settings.

The Notification Panel, for instance, can be swiftly summoned by swiping from bottom or top portion of the Nexus 5, which is also a feature that the designer has thought wise to hardwire with the Navigation Bar.

The platform interface provides more room for productive operation and tapping the screen with two fingers will prompt the KLP to present users with more screen cards that deliver further navigational controls and information.

Yet arguably, the coolest addition that KLP render imagines is the ability to add app shortcuts and widgets to the Nexus 5 lockscreen, giving users quick access to their favourite applications and important gadget functions.

It is widely believed in the Android world that Google will have twin debut in releasing Nexus 5 and Key Lime Pie at the same time. The release date is pegged at around October or November in the later part of 2013, jibing with earlier reports that the new Android build and the first handset to display it is coming around by the mid-part of Q4 2013.

Come D-Day, buyers can expect the Nexus 5 to flash a quad-core Snapdragon 800 CPU that hums away at a top speed of 2.3GHz with ample help from 2GB of RAM and a 35mAh battery. They will power a 1080p screen and a top-notch main snapper that is a toss between 13MP and 16MP.

To date, the Nexus 5 building honour is still up for grabs, though many analysts believe that it will be show for LG, which produced the Nexus 4.

But other names are in active contention, with Sony and Asus emerging as strong candidates.