ChalklYne

The program that all it's unique features are being merged into is Maya but there is a lot of other things they are not changing that were better in Softimage. The main thing off the top of my head would be the 2D/3D bone creation, it made auto IK solvers. With Maya, Max, Blender and every other program out there all bones start out FK. You have to manually set up the IK before you can even begin to build a rig. SO STUPID and time consuming.