We are still busy with new games, tron, kriegspiel and ludo are the next ones coming. Will ask the developers to look on robocode also. Thanks for the tip! :) If you have other nice games for AI, please let us know.
I'm the maintainer of LiteRumble [1], which is the official continual rankings of all Robocode bots. The Robocode install includes a client, which (offline) runs the battles that then get uploaded to the LiteRumble server, similar to SETI/Folding@home.
If you need anything on the Literumble which would help with an integration, don't hesitate the let me know. Discussion about developement of all Robocode related things happens on the RoboWiki [2].