Amazon released its Cloud Drive yesterday, a storage service that brings one of its most unsung services, Simple Storage Service, to the end-user.
The web-based drive currently offers up to 5GB storage online with an interface that resembles Windows Explorer, far better than Microsoft's own Skydrive. Unfortunately, unlike Dropbox, there's no client version in the pipeline it seems, one which would have allowed more elaborate features like folder syncing.
Users outside the US won't be able to get a free 20GB upgrade for now by purchasing an MP3 album, a freebie worth $20 per year. Amazon didn't say whether or when it will count free albums as part of the deal (as they are technically purchases as well).
Furthermore, there's no upgrade option for non-US users. Here again, Amazon has been mum with regards to upgrade capabilities. Paid upgrades start from $20 for 20GB for one year up to 1TB for $1000.
Songs purchased from Amazon MP3 do not count towards the limit but those that are manually added will count against your quota.
Amazon also released Cloud Player for web and Android which are both unavailable at this time outside the US and which allows the user to play back music straight from their Cloud drive. Amazon hasn't say whether video streaming will be part of the bundle in the future.