On mobile it works. However, this is probably the fact that the Amazon App for mobile phones is different for Tabs. The basic idea is good. It is understandable that Amazon wants to sell their own devices, but not everyone is willing to pick up the Kindle Paperwhite, mobile phone and notebook still a Kindle Fire to view movies on Tab can. Since Amazon would work on it and offer the Prime instant video app in the Google Store and work together with the Amazon-Tab app. If it all works, then the app would be great and the Prime membership is extremely worthwhile.