[kylec]

Are there any indications on what "for a limited time" means? Is there a term for which Amazon has promised to provide this service for free? Once the unlimited storage is no longer offered, will the existing files in the cloud be 'grandfathered' in and continue to be free to store, or will people be expected to pay or face loss of access to the files in the Cloud Drive?

[chris11]

I don't know what "for a limited time" means, but when accounts get downgraded, you keep the higher storage capacity until the end of the billing cycle. Then they give you a limited amount of time to delete files and download them.

[Joakal]

Likely a combination of both, similar to Dropbox's freemium.