I noticed that Adobe Flash Media Development Server 3 has been available download.You can download it from here.Flash Media Server 3 (FMS3) offers the unique combination of traditional streaming media capabilities and a flexible development environment for creating and delivering innovative, interactive media applications to the broadest possible audience.
Major performance gains
Video streaming performance more than doubles in Flash Media Server 3, allowing more streams and users per server. Incorporating features previously found in the Edge and Origin Editions, Flash Media Interactive Server can serve as either an Origin or an Edge to allow for virtually unlimited scalability.
More secure content delivery
Flash Media Interactive Server 3 features RTMPE, an enhanced version of Adobe’s Real Time Messaging Protocol (RTMP), with higher performance and 128-bit encryption to help secure streamed media and communication. A new verification feature protects SWF files from being reused, modified, or hosted in unauthorized locations. The new plug-in architecture can also be used to create custom authorization adaptors, such as validation with an external LDAP server.