Amazon is using a Flex application on at least two pages related to its Amazon Unbox service. There's a Flex application on the main Unbox page that allows visitors to browse and view previews of available videos.

A similar Flex application is also being used on the free Unbox downloads page, where visitors can browse videos that are available for free.

It looks like the same application with different data is being used on both pages. Its great to be able to browse the videos and watch the previews from within the application, without having to launch another plugin or external video player.