Adobe has released an open source library called Open Source Media Framework, which should become useful in Tsuka.
Now with this library for the front end and the Zend Framework for the back end, most tools are prepared, thus making the availability of Tsuka version 1.0 coming closer.
Before actually deciding if OSMF will be used in Tsuka, I need to check the impact on the resulting file sizes as my intentions are to make the Web loose some weight.
A special note for one particular AS3 library which is used for animations, is the Greensock Tweening Library. It has well deserved its growing popularity.