Mobile World Congress
The annual Mobile World Congress - formerly known as 3GSM - is intended to highlight the latest trends in mobile technology and services. It runs from 25 - 28 February in Barcelona, this year, and is organised by the GSMA (GSM Association). The congress brings together mobile operators, equipment vendors as well as industry figures.
Source:
http://www.electronicsweekly.com/Articles/2013/02/25/43090/mobile-world-congress-your-electronics-weekly-guide.htm