I packaged a FileGDB plugin for the GDAL framework. This is an oddball: it requires a separate download and install (instructions included with the plugin, and sorry, but it's a manual install for now) of Esri's FileGDB API. I decided not to bundle the FileGDB API libraries with the plugin because the license is vague about redistribution AND even if it was clear Esri has export restrictions that I don't have the means to enforce.

I haven't had a chance to test it yet - too busy at work to convert an old v9.2 file GDB to v10 format for testing (the FileGDB API only works with v10 file GDBs).