On April 9-10, Pearson will host the fourth Voices That Matter: iPhone Developers Conference, at Seattle’s Bell Harbor Int’l Conference Center. The conference will be led by industry authors and experts sharing their knowledge and participating in discussions, how-to sessions, and networking opportunities around the topic of application development.

The new iPad 2 will be an integral part of conference activities. Developers will reinforce skills, discover emerging trends, and connect with some of the biggest names in the industry, as they teach attendees how to create effective user interfaces, utilizing exciting design and the latest technology, for the iPhone, iPad, or both.

The conference is designed for: iPhone and iPad developers; long-time Mac developers wanting to leverage their existing skills; GUI designers; UX experts; and mobile application specialists.

Speakers and conference chair members include Pearson authors Erica Sadun, The iPhone Developer’s Cookbook, Second Edition; Stephen Kochan, Programming in Objective-C 2.0; Joe Conway, iPhone Programming: The Big Nerd Ranch Guide; Erik Buck, Cocoa Design Patterns; Aaron Hillegass, forthcoming iOS Programming: The Big Nerd Ranch Guide, Second Edition; Andy Ihnatko, forthcoming The Ihnatko iMovie ’11 Almanac; Matt Long, Core Animation; Rod Strougo and Ray Wenderlich, forthcoming Learning Cocos2D; Graham Lee, forthcoming Test Driven iOS Development; Kirby Turner, forthcoming Learning iPad Programming: A Hands-on Guide to Building Apps for the iPad. To view full bio’s on conference speakers please visit: http://iphonespring2011.crowdvine.com/speakers .

Topics covered will include Designing Graceful Gracious Interfaces for the iPad, Game Programming with Cocos2D, Multitouch, AV Foundation, Contemplative Design, Explosive Development and many other timely and compelling discussions. Visit http://iphonespring2011.crowdvine.com for more information on the conference, and www.informit.com/learnmac for more information on Pearson Mac Programming resources.