I've been thinking about using a cloud backup system (and unlike Comcast, Verizon's FIOS doesn't have a bandwidth cap) - but if you have Comcast, or any provider that does cap, you could have a problem. From PC World:

You see, my provider at home is Comcast, and the company has a now well-documented 250 GB per month bandwidth cap for combined upstream and downstream traffic. According to the reasonable person I spoke to at Comcast's security and policy department, I had used more than 600 GB in August; one more month of overage and I'd have my service canceled and not be eligible for service for another 12 months.

The author goes on to point out that it's not easy to find out how much b/w you're using; most ISP's have no way to tell you (or even the customer service people you talk to).

These bandwidth caps are running straight into the wall of spreading online HD content, iTunes downloads, and online storage for backup. Something's going to have to give - getting 2 TB drives is now cheap, and filling them is ridiculously easy. Online backup is going to be absolutely essential...

Technorati Tags: cloud storage, backup, bandwidth cap