http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2008/10/24/The-ArcGIS-API-for-Flex-1.0-has-been-released.aspxThe ArcGIS API for Flex is a powerful framework for building rich internet applications (RIAs) on top of ArcGIS Server that look good, run fast and are fun to use. The Flex Resource Center includes help and samples for the API and is part of the ArcGISenCommunityServer 2.1 SP2 (Debug Build: 61120.2)http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2008/10/24/The-ArcGIS-API-for-Flex-1.0-has-been-released.aspx#2862Mon, 27 Oct 2008 01:19:02 GMTb60b3f0a-e2bd-4be5-8a18-822c697649ab:2862wisely flex,javascript and adf,which way is best?http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2008/10/24/The-ArcGIS-API-for-Flex-1.0-has-been-released.aspx#2870Tue, 28 Oct 2008 23:46:32 GMTb60b3f0a-e2bd-4be5-8a18-822c697649ab:2870MikeAre you going to release a Silverlight API?http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2008/10/24/The-ArcGIS-API-for-Flex-1.0-has-been-released.aspx#2872Wed, 29 Oct 2008 08:59:31 GMTb60b3f0a-e2bd-4be5-8a18-822c697649ab:2872qingqingbingCan I user flex api in c#?http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2008/10/24/The-ArcGIS-API-for-Flex-1.0-has-been-released.aspx#2882Wed, 29 Oct 2008 20:53:01 GMTb60b3f0a-e2bd-4be5-8a18-822c697649ab:2882bjorn<p>No, you can not use the Flex API in C#. &nbsp;To develop with the Flex API you would use the Flex framework. &nbsp;You can find out more about Flex at <a rel="nofollow" target="_new" href="http://www.adobe.com/products/flex/">http://www.adobe.com/products/flex/</a>.</p> http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2008/10/24/The-ArcGIS-API-for-Flex-1.0-has-been-released.aspx#2932Thu, 06 Nov 2008 20:17:11 GMTb60b3f0a-e2bd-4be5-8a18-822c697649ab:2932John ArcherAny performance improvements or degradations with this vs the Java or .NET SDKs? Is there a summary or FAQ for any functional additions or removals for Flex vs the other SDKs as well? thanks john