06/02/08: From their site: "DurableDNS provides managed DNS hosting services. Your DNS records will
be hosted on multiple, geographically separated servers. The DurableDNS
control panel is a simple to use web-based interface. Automatic DNS
failover provides redundancy for your web site or other online services."
I stumbled upon DurableDNS when I discovered that our previous DNS provider XpertDNS had a single point of failure and went off line on Saturday, 5/31/08. I'm posting this on Tuesday 6/3/08, and XpertDNS is still off line.
So far, our DurableDNS experience has been stellar. Brian even identified and then fixed some bad DNS entries for me.