Tech news links: Ultra HD TV; Google's free NYC Wifi
TechCrunch: Ten companies form group to promote cooperation on Internet of Things
ABC: Sony unveils 4K line
TechCrunch: Google unveils free WiFi for Chelsea area of NYC
reuters: Chinese man pleads guilty to stealing $100 million of software
nyt: Samsung wants TV to evolve
nyt: Hashtag named word of the year
reuters: Samsung on track to be world's top appliance maker by 2015
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