MWC Revisited: The best of the rest

We've seen smartphones, wearables and tablets galore here at Mobile World Congress, plastered with mucky fingerprints and goodness knows what else over the week on the show floor. But that's not all. During our travels we've also discovered some weird and wonderful products that require a roundup of their own. Without further ado, here's the "best of the rest," a collection of the good, the bad and the downright strange that didn't make our other catch-up pieces.

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Sony Xperia Projector

Kicking off Sony's range of "smart products" is the Xperia Projector, a concept device that can throw useful information up against the wall. Some built-in lasers mean you can interact with the projection, tapping on icons just as you would with a smartphone. The device can also respond to your voice, meaning you can ask about your schedule or the weather, as with Amazon's Echo.