I've posted the latest se_toolkit build to the Esri FTP server. The changes block goes into the gory details, but not much has really changed (besides resolving some issues with 10.1 regression testing and improving the column parser). I pruned back the platform support, and expect to remove 9.3.1 sp0/sp1 soon, so please keep current on service packs.
I've already corrected a formatting defect in the README and have to handle some new 10.1 colormap types in raster export/import, so it probably won't be another year before the next release (probably no later than the 10.1 SP1 release).
I spent the last year generating KML in Java, so I hope to add a KML export mode to 'sdequery' soon. If you have any toolkit wish list items, feel free to add them to this thread...
