Imminent release Edit
The project is coming to a critical mass now and so a release is imminent.
The codebase has been upgraded to PHP5! Edit
It is in the process of being tested and polished. New features have been added too (like JSON). If you can't wait for a release, you can get your hands on it from the CVS under the "scholar" module. For details, see http://sourceforge.net/cvs/?group_id=88235
When I do a 1.0 release (for PHP5), I will migrate the source code to the subversion repository.