Hello,
We are starting an open source project for the newest MMO know as "Rift : planes of Telara".
(Actually on beta, release on the 1st march).
The project is written in C# and run with Windows, Linux and Mac (both with Mono).
Some features are ready as connection handler, account system etc.
The developpement progress will really start and take a major turn as soon as the next beta-test will be online.
We are currently looking for developpers, sniffer and also everybody who want to take part in this project.
Our project is host on Assembla and again, it's open source.
For more informations, please visit our developpement forum.
http://www.siennacore.com/
Best regards.