With its eye-catchingly brilliant screen, Samsung's latest TouchWiz 3.0 user interface gives a tactile, intuitive user experience, and includes iconic new features such as motion UI, Smart Unlock and customizable widget screen.

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The halls were strewed with NFC-powered "smart" posters that would unlock all manner of hidden secrets if you tapped them with your smartphone, from restaurant information to directions to the nearest restrooms.

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The startup and OnStar are finalizing their work on a smart phone app that will allow renters to unlock OnStar-equipped vehicles during a reserved period of time.

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However, it is a signal of how many smart institutional investors trust Third Point to find valuable investments and unlock that value.

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The Smart Knob promises a smarter, more secure deadbolt lock that lets us issue time-limited unlock codes or give trusted visitors a way in.

ENGADGET: March 16, 2013 4:15 PM EDT

When the camera's completely switched off, hit the power button and you'll go straight into camera mode which lets you shoot immediately, then about half a minute later the interface seamlessly goes back to smart mode, which is when you can hit the back or home button to toggle the Android unlock screen (though we'd rather go straight into the home screen).

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