Chris Dannen is a technology journalist for FastCompany magazine and CBS interactive. He has authored one Apress book entitled iPhone Design Award-Winning Projects (The Definitive Guide), published in early 2010, and wrote Google Voice for Dummies (2009). He has also written for Inc., RollingStone, and Discover magazines. He has worked extensively with Foursquare and Facebook in the past, including for his last Apress book, and also has good relationships with developers at Twitter. He holds a degree in English Literature from the University of Virginia. He is based in Brooklyn, NY.
Christopher White is a mobile software engineer at Medialets, Inc., the mobile advertising network. He is a self-taught programmer who specializes in iOS development, and has experience with Android, Windows Mobile and Blackberry developer environments. He has 10 years of experience with Objective-C, JavaScript, and mobile Web development. He holds engineering degrees from Princeton University and Carnegie Mellon University. He is based in Brooklyn, New York.