There are rumours now that Amazon Prime Instant Video may be going global.
Note that there a few shows and movies that you can already stream outside the USA on Amazon Prime Instant Video - not sure how is this going to work though.
Important to see there's a distinction between Amazon Prime Instant Video (the all you can eat movie/TV service included in the Amazon Prime subscription that is similar to Netflix and Hulu) and the Amazon Instant Video (the rental/selling movie/TV service similar to iTunes).
I have Amazon apps on my smartphone and one good feature is the ability to download movies/TV to watch while offline - on a plane for example.
Great news for Amazon Fire TV users too.