I just bought the program, I'm familiar with many animation systems like Blender, Flash etc.
Observation 1 :
Maybe they should take advantage of the decades of development that has gone into standard interfaces? I really shouldn't have to hunt around for simple things that normally would be on the top menu bar on a Mac, probably on windows also? At least move or duplicate standard file operations to the menu bar, where they belong.
Observation/question 2:
Why, after setting up a skeletal hierarchy and attaching all my images and switching to animation mode, would a child bone by default NOT inherit anything from the parent? Isn't that the WHOLE POINT of having a skeleton? If there are other steps to make that work, could someone tell me? I'm curious why that would be, though....
I can see that if I keyframe a bone, suddenly the children will inherit, but that doesn't seem to be standard practice in other animation systems? Inheritance should work regardless, I would think?
Observation3 :
Naming your program "Spine" makes it a bit harder to google answers about "bones", if you think about it, since google could easily think I'm talking about human anatomy. :-)