Airlines are taking a closer look at the entertainment options they provide passengers -- from new music systems with iPod connectivity to satellite radio to other on-demand programming. Some features even apply to coach. Guests include Mary Kirby, senior editor of Flight International magazine and proprietor of the Runway Girl blog. Also joining us is Jon Zellner, the Senior Vice President of Music Programming at XM Satellite Radio, which provides in-flight programming for several major air carriers.