Amazon already does digital distribution for video games and probably some other PC software, in addition to their significantly more high profile Android offering.
And while their storefront is adequate, their delivery and update systems are abysmal. Steam hasn't won mindshare because it JUST made it easy to buy games online, but it also made it easy to sign into an account, click a button and play them anywhere, and keeps your software up-to-date in the background.
EA has the only competitor that comes close, but their tarnished reputation in the gaming community has sullied the only worthwhile adversary Steam has.
EA has the only competitor that comes close, but their tarnished reputation in the gaming community has sullied the only worthwhile adversary Steam has.