Nice. For those path animations where you need the object to bend along the path like for example a snake, worm, tail etc etc.
1. Bind your object(s) to a joint chain 2. Create a spline IK solver 3. Cluster the IK curve 4. Attach those clusters to a motion path 5. Offset each cluster's U value by 1 successive frame down the chain
Now you have each cluster following the motion path, driving the spline IK deformations. Sweet!