Since the official launchof the Amazon Developer Portal, Amazon have received tons of positive feedback regarding the developer registration and app submission process.  There are questions still being asked by developers, hopefully, you will find the answers here… Are you required to submit a video along with other multimedia content, such as icons and screenshots? Although compelling videos can be helpful to customers when they are deciding on which app to buy, they are not required.    The only multimedia files that are required are:       •    Device icon (114x114px)     •    Large icon (512x512px)     •    A minimum of three screenshots (480x854px or 854x480px each)   The maximum size for each image is 3Mb.…