When I used to run 10 servers or so, I might have used this service to make upgrades easier. With potentially 100s of servers in the cloud at a time now, I've

When I used to run 10 servers or so, I might have used this service to make upgrades easier. With potentially 100s of servers in the cloud at a time now, I've already figured out how to bootstrap my image off a base install and start and stop servers on a daily basis. Upgrading an image is as simple as picking a new base image and applying my handy dandy boot scripts to it. I don't see a huge value to IaaS customers as their infrastructures are mostly ephemeral anyway, and are serviced by the likes of RightScale and Opscode who both provide tools that help you get your cloud image booted and configured. As for the larger own-their-datacenter customers, they'll likely have some solution based on Chef (Opscode) or Puppet, and be more tolerant to reboots. Smaller data center users might get a kick out of it though.