An engineer in India is designing the world's first Braille smartphone. Take a look at how the prototype works.
Sumit Dagar, a 2011 TED fellow, is developing the world's first Braille smartphone.
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'Tis the season for family, friends, gifts, holiday parties -- and all the rules of etiquette that goes along with seasonal get-togethers. Make sure you're avoiding holiday faux pas this season with this handy guide.