The day that many of us have been waiting for has arrived. Today, beta versions of both Flash Builder 4 and Flash Catalyst are now available for download via Adobe Labs. The two new beta releases have been in closed beta for quite some, but as of today the doors are now opened.
A Little Bit About the Two
Flash Builder(formerly Flex Builder) 4 delivers a long list of new features, plus improvements to many existing features.There are three main themes to this release: developer productivity, designer-developer work-flow, and data-centric application development.
As for Flash Catalyst, this new tool looks to vastly improve designer/developer work-flow when dealing with the Flex Framework and development of RIAs.
Further Readings:
While the news of the beta releases of Flash Builder 4 and Flash Catalyst is still young, I have compiled a list of resources that will help you get up to date topic. Enjoy!
Sounds like some exploring and learning is in order.