10 of the year's coolest gadgets

The English company Light Blue Optics boasts one of the biggest ideas at this year's CES. The company is debuting a projection system that throws an image of a fully functional keyboard on any table or flat surface. The outfit claims its new technology, which uses holographic lasers to capture typing strokes and hand movements, will be close enough to a real keyboard to type well.

But many questions loom: Projectable keyboards have been in commercial deployment since the turn of the millennium, and with limited success. And consumer adoption of such a, well, ephemeral concept is bound to be slow. But the potential for having a real keyboard to connect to say an iPhone makes this device, and trend, worth following.

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