"Your web apps or mobile optimized websites can now reach Amazon customers in nearly 200 countries worldwide on Kindle Fire and select Android smartphones.
Web developers with HTML5 apps and mobile-optimized web sites can easily get started at the Distribution Portal. Once you're logged in, go to "My Apps", and choose "Submit a Web App"
More information on how to prepare and submit your web apps is here.
@Ashley we might need an exporter for Amazon Web Apps?