Very cool. Are there AMIs that include ubuntu + web framework stacks? (say, rails+nginx+passenger)
Optimizations for EC2 include a custom developed mechanism (EBSmount) that auto-mounts EBS devices when attached, support for automating EC2 instance setup via user-data scripts, security updates installed on boot (prevents window of vulnerability) and an AJAX web shell and a rich web administration interface (over SSL).
Announcement: http://www.turnkeylinux.org/blog/maintenance-release
EC2 Details: http://www.turnkeylinux.org/docs/ec2
I definitely did not think of this when I asked the question, but if it turns out there is no project "similar to rubber, but for Fabric", I may start one, and I'll most certainly call it "Spandex".