More "wow" for a lot less "ow". iTween is a simple, powerful and easy to use animation system for Unity.
Open Asset Store
Focusing on the established solutions and frameworks of projects such as TweenLite, Tweener, and other Flash-based tweening and interpolation systems, iTween is a battle-tested solution for streamlining production in the Unity environment.
If it needs to come alive; its shouldn’t be frustrating. iTween exists to help you reach your goals without making the journey difficult, allowing polish to coexist in tandem with production.
Requires Unity 3.5 or higher. Update now.