I was alerted to KitchenSync, a AS3 tweening library by Mims Wright, on the Adobe blog feed a week or so ago. I was a bit skeptical at first of another tweening library for Flash but I have been searching for a true AS3 replacement to FUSE (I never started working with GOASAP but should probably check it out to). Tweener was ok but as a teacher I prefer libraries with good documentation as it makes a students life easier, which really makes my life easier. Anyway, I had to teach an AS animation class yesterday, which I normally do with Tweener, but decided to give KS 30 minutes to blow my mind. Within 5 minutes I knew I was going to be teaching KS. Good documentation, animation sequencing/paralleling, filter tweening, a dev roadmap and fast response to questions by Mims all told me KS was worth investing some time in and worth teaching to students. I hope to contribute some documentation over time and maybe a student project or two as a showcase. You should at least give it 5 minutes yourself.