Facebook, Whatsapp bigwigs grace the opening day of Mobile World Congress 2014

Barcelona event hosts some of the world's largest communication companies, with many unveiling their latest phones and gadgets
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Co-founder, chairman and CEO of Facebook Mark Zuckerberg speaks during his keynote conference as part of the first day of the Mobile World Congress 2014 at the Fira Gran Via complex on February 24, 2014 in Barcelona, Spain. The annual Mobile World Congress hosts some of the world's largest communication companies, with many unveiling their latest phones and gadgets. The show runs from February 24 - February 27. (Getty Images)
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Co-founder, chairman and CEO of Facebook Mark Zuckerberg speaks during his keynote conference as part of the first day of the Mobile World Congress 2014 at the Fira Gran Via complex on February 24, 2014 in Barcelona, Spain. The annual Mobile World Congress hosts some of the world's largest communication companies, with many unveiling their latest phones and gadgets. The show runs from February 24 - February 27. (Getty Images)
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Facebook’s 29-year-old billionaire founder and CEO Mark Zuckerberg speaks on the opening day of the Mobile World Congress in Barcelona, on February 24, 2014. Fresh from a $19bn takeover by Facebook, mobile messaging service WhatsApp said it will launch free voice calls by mid-year. Zuckerberg was the star speaker of the industry fair, had announced a stock and cash purchase of WhatsApp last Wednesday of $19bn. (AFP/Getty Images)
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Facebook’s 29-year-old billionaire founder and CEO Mark Zuckerberg speaks on the opening day of the Mobile World Congress in Barcelona, on February 24, 2014. Fresh from a $19bn takeover by Facebook, mobile messaging service WhatsApp said it will launch free voice calls by mid-year. Zuckerberg was the star speaker of the industry fair, had announced a stock and cash purchase of WhatsApp last Wednesday of $19bn. (AFP/Getty Images)
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Whatsapp CEO Jan Koum speaks during a Keynote conference as part of the first day of the Mobile World Congress 2014 at the Fira Gran Via complex on February 24, 2014 in Barcelona, Spain. The annual Mobile World Congress hosts some of the world's largest communication companies, with many unveiling their latest phones and gadgets. The show runs from February 24 - February 27. (Getty Images)
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Whatsapp CEO Jan Koum speaks during a Keynote conference as part of the first day of the Mobile World Congress 2014 at the Fira Gran Via complex on February 24, 2014 in Barcelona, Spain. The annual Mobile World Congress hosts some of the world's largest communication companies, with many unveiling their latest phones and gadgets. The show runs from February 24 - February 27. (Getty Images)
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Co-founder and CEO of Whatsapp Jan Koum holds a conference during the 2014 Mobile World Congress in Barcelona on February 24, 2014. The Mobile World Congress runs from the 24 to 27 February where participants and visitors alike can attend conferences, network, discover cutting-edge products and technologies at among the 1,700 exhibitors as well as seek industry opportunities and make deals. (AFP/Getty Images)
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Co-founder and CEO of Whatsapp Jan Koum holds a conference during the 2014 Mobile World Congress in Barcelona on February 24, 2014. The Mobile World Congress runs from the 24 to 27 February where participants and visitors alike can attend conferences, network, discover cutting-edge products and technologies at among the 1,700 exhibitors as well as seek industry opportunities and make deals. (AFP/Getty Images)
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CEO and president of Samsung JK Shin presents the new Samsung Gear Fit during the first day of the Mobile World Congress 2013 at Forum Complex on February 24, 2014 in Barcelona, Spain. The annual Mobile World Congress hosts some of the world's largest communication companies, with many unveiling their latest phones and gadgets. The show runs from February 24 - February 27. (Getty Images)
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CEO and president of Samsung JK Shin presents the new Samsung Gear Fit during the first day of the Mobile World Congress 2013 at Forum Complex on February 24, 2014 in Barcelona, Spain. The annual Mobile World Congress hosts some of the world's largest communication companies, with many unveiling their latest phones and gadgets. The show runs from February 24 - February 27. (Getty Images)
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President and CEO of Samsung Electronics JK Shin presents the Gear Fit during a press conference at the Mobile World Congress in Barcelona, on February 24, 2014. The Mobile World Congress runs from the 24 to 27 February where participants and visitors alike can attend conferences, network, discover cutting-edge products and technologies at among the 1,700 exhibitors as well as seek industry opportunities and make deals. (AFP/Getty Images)
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Samsung Galaxy Gear Fit (left) and Samsung Galaxy Gear 2 are presented during the 2014 Mobile World Congress in Barcelona on February 23, 2014. The Mobile World Congress runs from the 24 to 27 February where participants and visitors alike can attend conferences, network, discover cutting-edge products and technologies at among the 1,700 exhibitors as well as seek industry opportunities and make deals. (AFP/Getty Images)
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Samsung Galaxy Gear Fit S5 is presented during the 2014 Mobile World Congress in Barcelona on February 23, 2014. The Mobile World Congress runs from the 24 to 27 February where participants and visitors alike can attend conferences, network, discover cutting-edge products and technologies at among the 1,700 exhibitors as well as seek industry opportunities and make deals. (AFP/Getty Images)
Tue 25 Feb 2014 12:29 PM GST
Last Updated: Mon 23 Jan 2017 04:38 PM GST