There is no information available on how to delete the playlist on the VEVO HD app. I would recommend you have a look at the user's guide. The app functions in landscape and portrait mode, and it is easy to navigate. The iPad app is free to download and serves up high quality music videos from over 7,500 popular artists. For more details, visit http://mashable.com/2010/12/16/vevo-hd-ipad/.