Well, a couple weeks ago I finished the Java-based, Java- targeted rewrite of EasyORM. First Java project in a while and I must say I like the tools available to Java Developers (JUnit and Ant in this case).
The only task remaining for EasyORM 0.5.0 is to build a PHP- targeted code generator.
Since 0.5.0 was built with the pressing need of moving to Java, that's what I focused on. But by the time I had even begun the Java rewrite, I had a great new model for the generated PHP code finished and more or less tested.
O/R mapping in general isn't a trivial task. In particular, caching semantics and object (entity) life cycle management turn out to have a fair number of subtle details that aren't neccesarily easy to address. That said, I think EasyORM 0.5.0 (both PHP-targeted and Java- targeted) rectifies most of said issues...
I'll launch 0.5.0 as soon as I have half a day to build the code-generator for PHP.