iPhone usage around the world
by Chun Lok HO
1. Sales and profits
1.1. ~ 1.5 million iPhone were sold in 2007
1.2. > 10 million in 2008
1.3. > 15 million in 2009
1.4. ~ 30 million in 2010
1.5. > 70 million in 2011
1.6. > 120 million in 2012
2. iPhone
2.1. models
2.1.1. iPhone
2.1.2. iPhone 3G
2.1.3. iPhone 3GS
2.1.4. iPhone 4
2.1.5. iPhone 4S
2.1.6. iPhone 5
2.1.7. iPhone 5C
2.1.8. iPhone 5S
3. Background
3.1. released on June 29, 2007
3.2. designed and marketed by Apple Inc
3.2.1. released on June 29, 2007