San Francisco: Apple showed off its latest platform, iOS 7 at its WorldWide Developers Conference (WWDC), its mobile OS for the iPad and the iPhone.

Craig Federighi, senior vice president of Software Engineering at Apple demonstrates the new activation lock security feature in iOS 7 during the keynote address of the Apple Worldwide Developers Conference.

The new platform is a complete design overhaul and is the biggest change to the mobile OS since the iPhone was introduced in 2007. It is still in beta however and available only for developers, and will be released in the fall to the general public.

So what is new in iOS 7 ?

First and foremost Design: According to Apple, the new interface is purposely unobtrusive and they have done away with conspicuous ornamentation, and removed unnecessary bars and buttons.

Smartphone thieves are set to have a harder time after Apple Inc introduces an “activation lock” feature in its new mobile software, a move that comes amid pressure from authorities and consumers for companies to do more to stem a tide of smartphone theft.