Adobe is open-sourcing an implementation of FlexLiveCycle Data Services for remoting and messaging applications. This is a big deal!

Damon Cooper has a great blog post on the subject outlining what BlazeDS is all about. what limitations exist and the open sourcing of AMF too.

The more data we're shoving around. the more it makes sense to economize wherever possible. With Flex as our client platform. AMF is certainly the preferred method ~ BlazeDS just drastically reduced the cost of doing better. faster and more interactive publish/subscribe application development. We use remote objects almost exclusively in our Flex apps. but the way we're using them is entirely on request from client to server. BlazeDS will allow us to push data from server to client. which depending on the application could be a great asset. Think of any type of collaborative application - being able to see what other folks are up to in real time could be quite an asset.

We've already downloaded the beta from Labs to start playing as soon as we get time.