A new Client SDK for Flex clients is now generally available. It is based on an ActionScript 3 library that enables any Flex applications to receive real-time data from Lightstreamer Server.
The new SDK, called "SDK for Flash/Flex Clients (Native AS)" is compatible with Lightstreamer Presto and Vivace and can be downloaded, as part of Lightstreamer distribution, from:
http://www.lightstreamer.com/downloadretail.htm
Read the press release here:
http://www.lightstreamer.com/pieceofnews_0021.htm