Brent and I are pleased to announce completion of complex-query
functionality for MagmaCollections.  Magma users can now simultaneously
enjoy the transparency of an object database with high-performance
multi-attribute querying similar to relational databases.

For specific information:

  http://minnow.cc.gatech.edu/squeak/5859

For general information about Magma:

  http://minnow.cc.gatech.edu/squeak/2665

This functionality is now part of the one-click "Loader" install.  

If anyone has any questions please feel free to ask.

Cheers,
  Chris