Hi, first-time post. I searched, but didn't see a post specifically referencing this. Will the MB 13" unibody (MBP 13") fit on an airline tray in Coach with the screen open at a comfortable degree? I will be travelling somewhat often in the near future and wanted to watch movies in-flight on my 13" MBP. What are other people's experience trying to do the same with this model? I'm thinking of United, AA, and Southwest. Thanks!