We have released the first prerelease of the new Flash Media Encoder on Adobe Labs. The Flash Media Encoder is designed to enable technical producers to capture audio and video while streaming it live to Flash Media Server (FMS) or the Flash Video Streaming Service (FVSS).
For more information regarding this technology, please see the Release Notes.

Will be a MAC Version avialable, soon?
Hi Ali,
This question is answered within the Flash Media Encoder forum.
http://www.adobe.com/cfusion/webforums/forum/messageview.cfm?forumid=72&catid=628&threadid=1236054&enterthread=y
Not anymore, that link is no longer valid.
So, again, will there be a Mac version?
FME is now shipping on Adobe.com. It is Windows-only at this time.
http://www.adobe.com/products/flashmediaserver/flashmediaencoder/
Is there realy no MAC Version aviable?
Please see the online system requirements. http://www.adobe.com/products/flashmediaserver/flashmediaencoder/