My copy of Flash builder 4 beta finally expired yesterday (at least thats when I noticed that it had expired) but I was pleased to find that Beta 2 is already out. I guess one thing about being engrossed with work is that when you finally do get a chance to come up for air, there are all kinds of new toys to play with. This morning, while drifting aimlessly (but with purpose) I came across a new Adobe Flex In A Week series targeting the Flex 4 beta. You can visit the training at http://www.adobe.com/devnet/flex/videotraining/flex4beta/.
In case you didn't know, the Adobe Flash Catalyst is ALSO in its Beta 2 version.
http://labs.adobe.com/technologies/flashcatalyst/
http://labs.adobe.com/technologies/flashbuilder4/