"TKS has been available commercially for two years, but is in the final stages of release under the Mozilla Public License, version 1.1. Release under the MPL is anticipated in October, 2003."
Cool, this isn't the currently distributed version of TKS either. This is the new, you-beaut 64-bit version, with streaming results and disk based queries. In the next few days there should be some more information about this. I'd like to get some sort of paper for WWW2004 done - maybe based on the data structured used to store RDF.
The current name I like is ocelot.