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With established technology providing accessibility for the visually impaired, some of the latest mobile technology interfaces although stylish and appealing, offer only limited access to the blind. Case in point, the iPhone, with its smooth surface and sales in excess of 4.7 million units during the 3rd quarter 2008, is not exactly user friendly for the blind.

That soon may change with the invisual - a tactile silicon case for the Apple iPhone crafted by Portugal-based designer Bruno Fosi.