Zumobi Appoints Ken Willner As CEO; Eric Hertz Leaves To Explore New Opportunities

imageCEO Eric Hertz will be leaving Zumobi, the Seattle company developing a mobile phone user interface supported by advertising, we have learned. His last day will be Aug. 1. Taking over the reigns is Ken Willner, who joined the company in February as VP of market development. Previously, Willner worked at AT&T (NYSE: T) Wireless, where he served as VP of Advertising and Media and worked on the American Idol marketing campaign. Before that, he worked in the advertising industry, where he started Fizzylab, a contextual search and advertising company. Hertz, who is an investor in the company, told us he will remain on the board. “This is more of a decision about me than the company. For my professional career, I felt the need to take a look at some other things,” he said. “It