DevDay for iPhone (http://iphonedevday.com) is an interactive on-day conference for software developers and business professionals who want to learn how to build and market iPhone applications. DevDay for iPhone will take place at Dexter House in London, UK, on April 26.

Key speakers at DevDay for iPhone include Raven Zachary and Daniel Steinberg. Zachary, president of Small Society, who directed the Obama '08 iPhone application for the Obama Campaign, will provide the keynote presentation. Steinberg -- the editor for the new series of Mac Developer titles and the author of "Cocoa Programming, A Quick-Start Guide for Developers" by Pragmatic Programmers -- will present on the latest in iPhone app development with a deep dive into Core Animation and a workshop on developing applications for the recently announced iPad (subject to the release of the current NDA on the iPad software development kit by Apple).

In addition, the creators behind iPhone applications including Stanza, Deutsche Bank, Tag Heuer and Starbucks share their experiences of bringing iPhone applications to market. DevDay for iPhone London program, additional speakers and registration is available online.