I'm looking for something that is truly data center redundant so that my websites, billing, and MySQL never goes down due to hardware or data center issues. Seems a lot of providers call their service a cloud service but it's not in my mind because it is not immune to a data center going down. That happens a lot more than most people think. Sometimes due to DDoS, sometimes due to edge router or switch problems. Sometimes due to power or floods (Sandy) etc.
I don't want to debate about trying to located in a good data center with a perfect record. Some of the most expensive data centers with the best histories have had problems. I'd rather just have a true cloud service and not have to worry about it.
Not interested in Amazon.