Review my startup: Conflict-free, multi-master file replication
three14: Not being a graphic designer, I can't explain why the site doesn't say to me, "company that's established enough to trust with my data," but...That being said, this is a great thing to offer as an appliance.  I think that someone who's savvy enough to look for this, though, would probably not want to buy until you have a clearer story about how to do backups.  Can I, e.g. install Mozy or equivalent, on the theory that your customer is looking to get rid of sysadmin headaches?