[knarf180]

I'm not sure how much I trust cloud storage offering unlimited storage for $5 a month

[onionjake]

Polycloud is the S3-api compatible pay-as-you go, at $0.004/GB.

The unlimited storage is a separate backup product which right now is only only specific devices that have an upper limit on their size.

(Disclaimer/Source: Co-founder of CrowdStorage)