My ActionScript Game Server with 15,000 Concurrent Connections

Goal

Create a game using ActionScript for both the server side game server and the client side game with the ability for high concurrent (10,000+) socket connections. Make sure memory and performance of the application are up to the task.

What am I talking about?

This blog post will explain how I was able to create a socket server running on a Amazon EC2 ubuntu server with more than 15k+ concurrent connections. This socket server has all the game logic for a game called SpellTraction, which both the server and client are written in ActionScript.
Server: Game built in ActionScript 3 and run as a shell process using a modified redtamarin build. The modified redtamarin has a libev based socket server.
Client: Client game built with ActionScript 3.
To check out a running version of the client go to either:
http://renaun.com/serveras/test/ - this version is driven by other Amazon EC2 instances that are running test scripts to create the 15k+ connections.
or
http://renaun.com/serveras/spelltraction/ - the game with any other player looking at it right now.

Here is a screenshot of the game [...]
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