Bill Dudney 

Bill Dudney is a software developer and entrepreneur currently building software for the Mac and iPhone. Bill started his computing career on a NeXT cube with a magneto-optical drive running NeXTStep 0.9. He’s the author of iPhone SDK Development and Core Animation for OS X. He has several iPhone applications currently selling on the App Store. You can follow him on Twitter @bdudney and on his blog at http://bill.dudney.net/roller/objc.

Matt Gemmell

Matt Legend Gemmell is a freelance Mac OS X and iPhone developer based in Edinburgh in the UK. Matt has been developing for Mac OS X since 10.0 Developer Preview 4 in late 2000. Matt is a prolific contributor to the Cocoa open source community and focuses primarily on intuitive interaction and interface design. Matt has source code in use in more than 60 third-party applications (that he knows of; likely many, many more).

Mike Lee

Mike Lee, the World’s Toughest Programmer, is the founder and CEO of United Lemur, a philanthropic revolution disguised as a software company. Mike also cofounded Tapulous, whose titles include Tap Tap Revenge and Twinkle. Prior to iPhone, Mike cut his teeth — and won an Apple Design Award — at Seattle-based Delicious Monster Software. Mike is originally from Honolulu, is a popular blogger and occasional pundit, and has been seen on twitter as @bmf.

Graham Lee

Graham is a senior software engineer at Sophos, where he is the technical lead for the Mac team. He has spoken at numerous Mac and UNIX user groups, and is an active member of the Mac community, being on the committee for the Oxford Mac User Group and a co-founder of the Swindon branch of CocoaHeads, a worldwide Mac developer gathering. Before joining Sophos in 2007 he studied Physics at Oxford University, where he is currently reading for an MSc in software engineering. Graham believes that many problems can be solved by reversing the polarity of the neutron flow.

Drew McCormack

Drew McCormack is a scientific programmer and researcher in the Theoretical Chemistry Department of the Free University in Amsterdam. He is a board member and regular contributor on the MacResearch.org web site, and develops the Cocoa flash card application ‘Mental Case’ in his spare time. Drew has written articles and tutorials on Cocoa development for the Apple Developer Connection (ADC), O’Reilly’s Mac Dev Center, andMacResearch.org, and co-authored the book ‘Beginning Mac OS X Programming’ with Mike Trent.

Philippe Mougin

Philippe Mougin, a long-time Mac OS X and NeXTSTEP developer, is the creator of F-Script, a dynamic language and interactive environment for Cocoa. Philippe is also the co-author of “Become an Xcoder” and of a number of publications and talks in the fields of Mac OS X development, dynamic languages and enterprise systems. 

You can find more about Philippe’s work on his professional page at http://www.fscript.org/prof/prof.htm and you can follow his latest adventures and misadventures on his blog at http://pmougin.wordpress.com

Andre Pang

After being distracted with the underground demoscene and music, André studied Computing Science & Psychology at the University of New South Wales in his home town. There, he found his love for coding, functional programming languages, open source, Linux, and learning about what makes people tick. In 2002, André discovered Mac OS X (Jaguar, for the curious folks) and Cocoa, and became the Mac lead at a number of projects such as Annodex and cineSync. André is currently living a nomadic lifestyle at Realmac Software working on RapidWeaver and LittleSnapper.

Fraser Speirs

Fraser Speirs is a Mac OS X and iPhone Developer and Director of Connected Flow, Ltd.  On Mac OS X, he is best known for the FlickrExport plugins for iPhoto and Aperture.  On iPhone OS, his Flickr client Exposure has consistently been one of the most popular photography applications on the App Store. In the past, Fraser has written for O’Reilly Media’s Mac Developer Journal and blogged at MacDevCenter.  He has also worked on the LHC Computing Grid project to support the Large Hadron Collider experiment at CERN.

Marcus Zarra

Marcus S. Zarra is the owner of Zarra Studios LLC and the creator of seSales and iWeb Buddy as well as being a co-author of “Cocoa Is My Girlfriend”, a wildly popular blog covering all aspects of Cocoa development.  Marcus has been developing software since the mid-1980s and has written software in all of the major technological fields. Marcus has been using Core Data since its original release in OS X 10.4 Tiger and has released numerous applications and papers covering all of the topics of Core Data.