Apple today announced that it has named Arthur D. Levinson, Ph. D. as the company’s non-executive Chairman of the Board. Levinson has served as a co-lead director of Apple’s board since 2005, and will continue to serve on the audit committee; he is also chairman of Genentech, where he served as CEO from 1995-2009. In addition, Robert A. Iger, President and CEO of The Walt Disney Company, will join the board and will also serve on the audit…