Houdini Engine for 3ds max is now available and working! I can't believe how well it works!
Here is a swiss cheese plugin for max that I created in Houdini and loaded in max via the Houdini Engine. I had a hard time finding the binaries, it's kind of hidden in the github website. Not very user friendly but I got it to work.
So finally Houdini Engine for max is free for Houdini indie licensee? You should make some announcement about that!