I’ve been experimenting with using Amazon S3 as a way to have cheap offsite back-up for photos, music, and project files. Though there are start-ups and software available to make using this option less painful for the non-developer it’s still a less than ideal experience. It’s a challenging project if you want to diy.
Bandwagon looks like an alternative and judging from what I have read it might even allow you to interface with S3. They have a weblog where you can track their development.
Bandwagon. Via Swissmiss.