I’ve updated the MahJong app, adding support for UI elements embedded in the 3D view, hit detection of the 3D tiles, and a bunch of other stuff, fixes, etc.  I’ll be doing some more posts “Real Soon Now”, once I’ve managed to organize my thoughts.

For the moment, the updated application zip is here.  For people who do not have the Enterprise Library Composite Application Block (CAB) installed, the missing references can be found in this DLL.