Adobe recently released Adobe Edge ... their tool for simplifying development of  Flash like animations in HTML5 / CSS / Jquery aninmation ... their attempt to make peace with iOS .. mobile world ...

http://labs.adobe.com/technologies/edge/

http://labs.adobe.com/technologies/edge/resources/

With the look and feel similar to Adobe flash developer tools .. it should be a easy switch for  Flash developers out there ...  though the animations dont feel that smooth ... and the code looks quite heavy ( just like Dreamweaver ) ...

Anyway a interesting new tool .. May be this is how the next version of Expression Blend  will work  ...  to align developers to Windows 8  development ...