http://aleembawany.com/2011/02/18/apples-strategy-for-the-ultimate-platform/
http://articles.businessinsider.com/2011-09-26/tech/30203249_1_ipad-app-facebook-ceo-mark-zuckerberg
http://www.afterdawn.com/news/article.cfm/2011/10/03/did_apple_and_facebook_have_a_fight_over_the_hp_touchpad
http://articles.businessinsider.com/2011-09-22/tech/30188390_1_mark-zuckerberg-ios-facebook
http://9to5mac.com/2012/05/29/tim-cook-stay-tuned-for-stronger-facebook-ties-with-ios-apple-had-no-interest-in-buying-instagram/