In terms of available content Netflix appears to have the upper hand, though. Most of the Amazon Prime Instant Video titles highlighted on the site are also available on Netflix's Watch Instantly, which boasts roughly 20,000 streaming video selections. Nevertheless it will be interesting to see how Amazon fares in acquiring new content for its service.
Video will be available on Macs and PCs in the U.S. as well as a number of set-top boxes such as the Roku. If you are already an Amazon Prime subscriber and have tried out the new service let us know your thoughts in the comments.