Flex 2.0 released a public Beta on Adobe Labs yesteraday. In addition to refreshing Flex Builder 2.0 and the Flex framework, this Beta also includes the Flex Enterprise Services (FES), which is the service piece of Flex 2.
Along with this is the "ColdFusion/Flex Connectivity" beta, which includes two interesting pieces for ColdFusion developers
1. The Flash Remoting Update. This is an update to the Alpha released last year (formerly called "the CF Adapter") that allows you to use the new Flash Remoting functionality with Flex Builder 2.0 and CFMX. The sweet thing here is that you can map CFC objects on the server to ActionScript objects on the client seemlessly. These are called "Value Objects".
2. The Flex Messaging Gateway. This is the piece that I wrote that uses the Flex 2.0 Messaging system to allow ColdFusion MX 7 to Publish/Subscribe messages to/from a flex application. I think this is pretty cool - you can use SendGatewayMessage() to send a message that multiple Flex clients will receive. And vise-versa.
Anyway, check it out up on Labs and let me know whay you think!