The problem I see is that Amazon has been selling about one million of these Fire things a week and many of them may not be fired up, so to speak, until Christmas Day. Here's what happened after I fired up my Kindle Fire: It gave me instructions on how to put my music in the cloud, and store it there for free, and those instructions were very easy to follow, so my laptop was soon engaged in uploading 6,471 files. Engaged as in "I need to spend several days trying to do this."
When it was done, those files added up to over 30 gigabytes of data, sitting in the cloud somewhere, ready for me to listen to them at the tap of a screen. Now imagine 2 million people getting a Fire for Christmas and accepting that invitation to put their music in the cloud. Suppose they each have, on average, 20 gigabytes of music. That's 40 million gigabytes or 40 petabytes added to the cloud and Internet traffic on Christmas Day. I hope Capacity Planning at Amazon.com has been doing some planning. And those folks who manage the tubes, they better be ready to put out some fires.