Dave is Managing Director of Agant (http://agant.com), one of the UK’s top app development agencies. Agant created the BAFTA-nominated Malcolm Tucker app – the first app ever to be nominated for a TV BAFTA – as well as the official QI and Arsenal FC apps for iPhone and iPad. Agant are also the people behind UK Train Times, one of the highest-grossing UK apps of all time.

Agant’s expertise is in adapting content for mobile applications – including real-time data, live event information, and published book content. As a developer himself, Dave has been creating applications for Apple devices for the best part of 9 years. He’s interested in interface design, storytelling and geolocation, sometimes all at the same time.

Aral Balkan lives, breathes, and dreams user experience. He also occasionally does laundry. He has been spotted gesticulating wildly in front of large audiences, making iPhone apps, and training iOS ninjas at http://geekninjafactory.com.

Ross Carter started programming in AppleBasic on an Apple //c. He is the author of Pagehand, a Cocoa-based word processor. During his 30-year career as a lawyer, he conducted numerous seminars on language usage, persuasive writing, and typography for business writing. His company, pagehand.com, has produced applications for both OS X and iOS. He enjoys directing theater comedies and performing in theatrical and ballet productions.

Guy has worked in the video game industry for many years before quitting to pursue his childhood dream of writing desktop Macintosh software. Since the introduction of iPhone Guy has been sucked back into working on video games while continuing to be a hired gun for people who need to get things done and not talk about them. Also, he writes some software.

Nathan loves creating software and helping other developers hone their skills. As the founder and lead developer at Free Time Studios, he spends his days coding, teaching and writing, and he wouldn’t have it any other way. An Apple and Cocoa fan since the turn of the century, Nathan has been a dedicated member of the iOS developer community since the day the SDK was released. Since founding Free Time Studios in 2009, he has helped many organizations such as NASA, Thompson Reuters and the U.S. Army ship their iOS apps and train their development teams. Nathan believes that a thriving community is the foundation of a great platform, and he devotes much of his time to the Cocoa community. His seminars and technical presentations are popular attractions at iOS and Mac developer conferences around the globe. He is also an active member of the developer community in Houston and is the co-organizer of the Houston iPhone Developer Meetup group and the creator of iPhoneDevCamp Houston.

Matt Gemmell is a User Experience and User Interface designer and developer based in Edinburgh, Scotland. He runs his own business, Instinctive Code, is an invited speaker at industry conferences, and writes for Tap! magazine (amongst others).

He has written hundreds of articles about development and interface design on his popular blog mattgemmell.com, and his clients include Apple and other Fortune 500 companies.

Danny has been shipping Cocoa applications for 6 years for the likes of Realmac Software and No Thirst and currently works for GitHub, under the official title "Cocoa Badass". Whilst his main duties are to work on GitHub's Mac and iOS products and internal tools he also likes to spend time hacking away with the runtime doing things that Cocoa really wasn't meant to do, whilst exploring the inner depths of Objective-C.

Despite his protests, many view him as a "young punk" and he fears that this will still be the case even when he's Kevin Hoctor's age.

Tim Isted has been writing software for Macintosh computers since 1995. He also builds web applications using Ruby on Rails, PHP, and .NET, and has been known to develop for Windows machines, too. He occasionally blogs on Core Data at www.timisted.net, and is the author of "Core Data for iOS" for Addison Wesley and "Beginning Mac Programming" for Pragmatic. He can be found on Twitter as @timisted.

Jeff LaMarche is the author of several books on iOS and Mac programming and a principal at MartianCraft, LLC, a software development firm focused on Mobile and Mac development software. He maintains a technical blog on iOS software development at http://iphonedevelopment.blogspot.com and speaks at several conferences a year.

Graham Lee is a smartphone security boffin. He works for a large UK mobile network operator, ensuring that their new shiny things are safe for people to use. He is the author of two books: Professional Cocoa Application Security and Test-Driven iOS Development.

Mike Lee is an international adventurer, like Indiana Jones, but with engineering instead of archaeology. Before embarking on a life as a costumed superhero, Mike shipped product for Apple, President Obama, and your mother. In between winning the Apple Design Award and traveling around the world, Mike cofounded Tapulous, makers of the first popular iPhone game. When he's not wrestling tornados or changing the world, Mike enjoys drinking, smoking, and causing a ruckus. He was last seen in Appsterdam, world capital of app development.

Matt Long is a husband, father, iOS developer, blogger, author and entrepreneur. He lives is Colorado Springs, Colorado with his wife and five kids. Matt, co-founded the Cocoa blog, Cocoa is My Girlfriend. He is the co-author of Core Animation: Simplified Animation Techniques for Mac and iPhone Development.

In a former existence, Drew McCormack was a Chemical Physicist developing software for some of the most powerful supercomputers on the planet — in Fortran (yeah, they still have that). Since founding The Mental Faculty (mentalfaculty.com), he divides his time between developing the study app Mental Case (mentalcaseapp.com), and contributing to Core Plot, an open source graphing framework. He occasionally dabbles in writing, and co-authored the book 'Beginning Mac OS X Snow Leopard Development'.

Renegade polymath, semi-retired mad scientist. Full-time CEO and iOS developer, kung fu enthusiast, husband, and dad. I work at Black Pixel.

Michael Simmons is co-founder of Flexibits, a Mac and iOS software developer. A veteran Apple guy, Michael has been marketing, business developing, and product managing Apple-related wares for over 15 years. He’s worked at Apple, Prosoft Engineering, Ambrosia Software and Cultured Code, helping to launch, market, and maintain many successful apps. With expertise in business development and a strong passion for development, Michael has the vision and experience of how an app's design and marketing should work together providing the most successful and effective products. He also likes to talk. A lot. Which is a good thing, because he has a great deal of success and experience he wants to share.

Fraser is a well-known public speaker at events such as the Apple EU Leadership Summit, Abilene Christian University's 2011 Connected Summit and Macworld Mobile. He regularly works with schools around the world focusing on next-generation educational technology, teaching practice and curriculum.

Cedars School of Excellence is known as the first school in the world to roll out the Apple iPad on a 1:1 basis. Fraser is the Head of Computing and IT at Cedars and was responsible for the planning and execution of that project.

Fraser is also a well-known Mac OS X and iOS developer.

Marcus Zarra is the owner of Zarra Studios, where he builds Mac, iPhone and iPad software for a wide variety of clients and customers. Outside of Apple, there are very few people with a better understanding of Core Data. He has not only written the book on Core Data (Pragmatic Programmers), he has also been doing iPhone, and now iPad, development as long as it has been possible to do so, and Mac programming for even longer. With Matt Long, Marcus is the coauthor of the popular programming blog Cocoa Is My Girlfriend. Marcus is also a co-author of “Core Animation: Simplified Animation Techniques for Mac and iPhone Development” (Addison-Wesley).