Triple Buffer Software has released the TB GDK version 1.3. The major changes include the introduction of the concept of "scenes" and a namespace change (reasons mentioned on the site's home page). The Core has also undergone some nice changes. And its even easier (!!) to create a running application now.
The DXW Main page can be found here. Along with the first 5 tutorials on how to use the current features that the GDK provides.