Comment 2 for bug 932088

Hi,
  We're hoping to [very soon] retire the old EC2 mirror infrastructure and replace it with mirrors backed by S3 [1].
  When they go live, the rollover will be transparent to the user, but right now you can selectively choose the S3 mirrors, which should provide better uptime and speed.

  If you're using automated infrastructure, we'd *really* love for you to hit those mirrors instead of the default ones to give them a good test and report problems you have. In the thread at [2], I indicate how you can make use of these mirrors either via cloud-init data or 'sed' editing of /etc/apt/sources.list .

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[1] http://cloud.ubuntu.com/2012/01/regional-s3-backed-ec2-mirrors-available-for-testing/
[2] http://groups.google.com/group/ec2ubuntu/browse_thread/thread/507f58dd51b6b631