The new functionality includes a new common Service Registry Service (EMIR), the Worker Nodes on Demand Service (WNoDeS), Nagios probes for most services, better integration of the Argus authorization framework with many services, the initial implementation of the common EMI Execution Service interface and more.
All services are available for Scientific Linux 5 64 bit and Scientific Linux 6 64 bit. A subset of services is also available for Debian 6 64bit and more will be released in the near future.
One of the major goals of EMI is to create a true open source community around the software. Source RPMS and Debian source packages are available in the repository. All packages follow open source policies and can be rebuilt with standard tools like mock and pbuilder, therefore contributions and fixes are always welcome.