@inproceedings{upm20961, publisher = {Workshop of the Maseltov Project "Mobile services for inmigrant people: learning, information and community building for employment and integration"}, booktitle = {Workshop of the Maseltov Project "Mobile services for inmigrant people: learning, information and community building for employment and integration"}, month = {April}, title = {Opportunities and challenges of mobile social networks}, author = {Claudio Antonio Feijoo Gonzalez}, year = {2012}, url = {https://oa.upm.es/20961/}, abstract = {Increasing availability (andaffordability) of mobile broadband - In 2015 half of the subscriber base will be in 3G/4G, and 80\% in 2020 (27\% in 2011) - 7.6 billion mobile users by 2020 (5.4 billion in 2011). Mobile subscribers per 100 inhabitants:99\%. Increasing availability (and affordability) of smartphones - In 2020 81\% of phones sold globally will be smartphones (2.5 billion) from 26\% in 2011 (400 million) - 595 million tablets in 2020 (70 million in 2011)} }