Tween Engines

Back in the Flash days, there seemed to be a lot of popular tween engines. TweenLite, GTween, Tweener, FuseKit... all of which were used regularly. It wasn't a surprise if you saw a project using one. But now, it's Greensock (TweenLite) or JQuery. Any other is strange. At least for banners. Im sure that in the bigger scheme of things, nothing is a surprise. But seeing as how Im a banner developer, thats the realm Im talking about.

Does anyone have another low weight tween engine that is good in banners that we should make a regular thing?