>Anyone using Amazon's cloud service to host a VFP application? where the VFP app is a pay-as-you-go SAAS offering for multiple clients?

I spent big $ trying to move our WC VFP app to Amazon. It didn't work. SQL server would die for no reason and even though it was a mirrored database, failover would not occur; you couldn't even manually failover, we had to do the equivalent of a hard reboot.

There are many, many things to like about AWS. I wish we could use them. The ability to save server images and spawn a new server in minutes is incredible. The load balancer is simple.

We paid for gold support which guaranteed a response in X hours. The problem was, these support techs would reply to your detailed question with some b.s. additional question (thus clearing their queue), and then your X hours starts over again once you reply. Very, very aggravating.

The big, big downside: About twice a year AWS has MAJOR issues with their infrastructure. The last one was a load balancer issue, before that it was EBS (multiple times). When AWS goes down, you have nobody to yell at.

I would avoid AWS for anything mission critical unless you have the expertise to failover across multiple regions (not availability zones).

We went back to our own co-lo rack and have no intention of going back.

FWIW - we find liquidweb.com to be incredibly reliable and responsive.