Some ISPs-- like Telenor in Norway, for example-- already offer a similar (but not identical) service. Personally, I use Dropbox instead of the "Telenor Online

Some ISPs-- like Telenor in Norway, for example-- already offer a similar (but not identical) service. Personally, I use Dropbox instead of the "Telenor Online Backup"-- and I can't say that the billing method has made much of a difference.