Maybe this was after you did your work, but ELB currently supports affinity, see: http://aws.amazon.com/about-aws/whats-new/2010/04/08/support-for-session-stick

Maybe this was after you did your work, but ELB currently supports affinity, see: http://aws.amazon.com/about-aws/whats-new/2010/04/08/support-for-session-stickiness-in-elastic-load-balancing/ http://aws.amazon.com/about-aws/whats-new/2010/04/08/support...