This was a monumental failure! Hard to navigate, layout is worse than ever before, taking away the ability to chose the classic pane over the new and improved Charlie Foxtrot you have created, mail is screwed up and it is not user friendly in any way! Was this ever beta tested and marketed to a small number of Yahoo users to provide feedback on? Horrible horrible horrible!!!! If your goal was to drive users away then I would say this was a complete success. If I were you I would at a minimum give the option to change back to classic immediately......or the option for users will be to leave, and that seems to be happening as I type!