Step into the future of mobile phones with a new patent which has been files by Nokia to bring us the layered mobile phone which has a dedicated QWERTY keyboard, dedicated multimedia control keys, and T9 keys. If this patent takes off it will be a triple slider mobile phone, so think of the complexity that’s gone into its development
Source - Unwired View
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Very complex and an admirable solution, but I think touchscreen is the future - so much more versatile than physical keys and it’s reaching a tipping point in adoption.