For what it is worth, I found the Rackspace Windows Cloudservers (Beta - various sizes) to have amazingly fast IO (500+mbs). They were 4-7x as fast as the EC2

For what it is worth, I found the Rackspace Windows Cloudservers (Beta - various sizes) to have amazingly fast IO (500+mbs). They were 4-7x as fast as the EC2 instances I tried. (70-120mbs) I was just using ATTO. Is this a valid test? It was at least twice as fast as my RAID10 dedicated server (240+mbs).