Flash and Flex Remoting implementations for different platforms

There’s a lot Flex Remoting solutions for different platforms and platforms and languages. I decided to summarize them in the following list:

• Java: BlazeDS. Official Adobe open source Flex Remoting solution, proposed for porting to all other platforms.
  Tutorial: How to use BlazeDS Remoting.
• .NET: FluorineFx. Works just great (tested by myself).
  Tutorial: How to Integrate .Net / Flex 3 with FluorineFX.
• Python: PyAMF.Tutorial: Using PyAMF with Google App Engine.
• PHP: AMFPHP.
  Tutorials: Flash/PHP/Flex/AMFPHP Tutorials.
• Ruby on Rails: RubyAMF.Tutorials: Flexible Rails excerpt: Refactoring to RubyAMF, Flash Remoting for Rails Tutorial.
• AJAX: WebORB. AJAX, Java, .NET, PHP and RoR Remoting!
  Tutorials and Examples: WebORB and Rich Client System Demos.

It’s just great to see how widely Flash Remoting and AMF are spreaded among the web development world. Am I missing any important tool here?