1. Apple. 2010. Game Center. http://www.apple.com/game-center/. Apple. 2010. Game Center. http://www.apple.com/game-center/.
2. Andy Qua. 2008. Cube Runner. http://itunes.apple.com/app/cube-runner/id284596345?mt/8#. Andy Qua. 2008. Cube Runner. http://itunes.apple.com/app/cube-runner/id284596345?mt/8#.
3. Aurora Feint. 2009. OpenFeit. http://openfeint.com/. Aurora Feint. 2009. OpenFeit. http://openfeint.com/.
4. Backflip Studios. 2010. NinJump. http://itunes.apple.com/us/app/ninjump/id379471852?mt=8. Backflip Studios. 2010. NinJump. http://itunes.apple.com/us/app/ninjump/id379471852?mt=8.
5. Interweaving mobile games with everyday life