Omnicom Group, one of the top media holding companies in the world, on Thursday launched Mobile Behavior, an agency devoted to marketers eager to target mobile markets. Mobile Behavior combines Omnicom’s Youth and Mobile Marketing practice with the company’s advertising and marketing agencies. These agencies include BBDO Worldwide, Goodby, Silverstein & Partners, Martin/Williams and Fleishman-Hillard. “Our lives are more mobile than ever, and the continuing progress of mobile technology is prompting a major shift in the way we think about and interact with media,” said Omnicom President-CEO John Wren, in a news release. The new agency is based in New York and has a particular focus on the Asia Pacific region, which is fueling the development mobile media.