Amazon.com Adding Games to Software Downloads
A job posting on Gamasutra suggests Amazon will soon start a PC game download store to compliment Unbox, its video-on-demand service, and the site's MP3 download store. The job posting asks programmer/engineers to apply to become a part of the Software and Video Games Digital Technology Team at Amazon, which is "responsible for digital distribution of software and video game products from the Amazon website, including the newly launched Amazon Software Download store."
This is precisely what we have anticipated, though not just games, large office products as well, could be covered by this. Naturally a job post does not give any indication of how long before such a feature would launch, however.