Photos: 11 Hottest Concept smartphones

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Known as O2 Mobile phone, the concept was inspired by `molecule esthetics' of the oxygen molecule. Created by Tjep Design, it has a screen and a keypad.

Image courtesy: Tjep Design

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Here's a concept phone made of wood. Developed jointly by NTT Docomo, Sharp and Olympus, the phone is a part of Touch Wood project.

The mobile phone is built of surplus wood from forest-thinning operations, and is claimed to be waterproof and bug-resistant. The phone is also said to maintain the texture and aroma of natural wood.

Image courtesy: NTT Docomo