Pleade 3.1 is ready no !
Download Pleade 3 since SourceForge> > Download...
Pleade 3 demonstration : http://demo.pleade.com/
More informations... http://pleade.com/
The PLEADE documentation is not yet translated to English. As soon as the development stabilizes towards a 1.0 version, we will make the complete documentation avaiable in English and may be other languages. For now, you can look at the installation instructions and explore by yourself!
All the information needed to correctly install PLEADE, including links to download supporting tools.