BRANDON, John. “The Future of Smartphones: 2010-2015 and Beyond”. February 16, 2010. [April 17, 2011]. <http://www.digitaltrends.com/features/the-future-of-smartphones-2010-2015-and-beyond/>.
REED, Brad. “A Brief History of Smartphones”. June 18, 2010. [April 17, 2011]. <http://www.pcworld.com/article/199243/a_brief_history_of_smartphones.html>.
“Smartphones of the future”. February 4, 2011. [April 17, 2011]. <http://nextbigfuture.com/2011/02/smartphones-of-future.html>.
RED, Brad. “A Brief History of Smartphones”. June 18, 2010 [April 17, 2011].
