This. I still can't take advantage of Amazon prime video streaming on my Android phone without 1) allowing app installs from third parties and making my device insecure 2) installing the Amazon app store 3) THEN installing the Prime video app.

Proof: http://www.amazon.com/gp/video/splash/sd/t/appstore

Everything they do is to drive traffic traffic to their properties first, and serve paying customers second.