A beta version of the Tactile12000 for OS X will be coming in December when Director MX ships.
Documentation for the DirectSound Xtra has been added to the dsx sdk file package, and also submitted to the documentation section (should appear shortly). Will also add to the Director sdk file package next time that is uploaded.
Version 2.1 of the Tactile12000 is now available, along with the SDKs. Download the binaries from the t12000 package or the source code from the t12000sdk package. Visit www.tactile12000.com for more information about this release.
You can register for the beta version SDK of the Tactile12000 at http://www.tactile12000.com/develop/.