All the great names in Flex were there, and my favorite by far was Doug McCune's session on custom components.  Doug has done some amazing things (using other people's work) by mashing up all the cool open source code there is out there, and creating things that really knock your socks off.  Being at the conference, I was also privvy to some of the beta Flex apps that are being talked about, like Buzzword the web-based word processor, and Mixbook - the collaborative photo book creator.  Also announced was the next 360|Flex event being held in Italy.  Ciao bella! 

The Seattle Flex Users Group put together a charity code jam during the entire event and the goal was to create a Flex based website for Northwest Harvest Food Bank.  The nice thing about this charity event was that the entire project is open source which means that the entire code base, which was figured out to be valued around $74,000, can be used to setup other sites for food banks/etc.  Great work from everybody.

Looking forward, I see Flex as becoming one of the mainstream technologies for RIA development, and judging by the crowd and enthusiasm at 360, I think I'm not alone.