The yo-yo phone is still just a concept (the idea of Shaik Ridzwan) but perhaps could be a reality sometime soon. Headphones wrap around where the string traditionally goes. The big drawback of this design is you can’t actually use it like you would a yo-yo and not break it.
This has to be one of the most unique mobile phone design concepts in ages. Forget the sliders, clamshells, and candybar phones – the Yoyo form factor wants to make its way into your hands.