An event goer uses Samsung Electronics Co's latest Galaxy S4 phone after its launch at the Radio City Music Hall in New York March 14, 2013. Samsung Electronics Co on Thursday premiered its latest flagship phone, the Galaxy S4, which sports a bigger display and unconventional features such as gesture controls and will spearhead its effort to challenge Apple Inc on its home turf. REUTERS/Adrees Latif (UNITED STATES - Tags: BUSINESS SCIENCE TECHNOLOGY TELECOMS) Published: Bře. 15, 2013, 1:20 dop. | Foto: Reuters