Today is the release of the long awaited Flash Client SDK for Photon. The AS3 API allows you to connect to the regular Photon server and through this you can also connect to clients on other supported platforms.
Build entire realtime multiplayer games in Flash or enhance the community site of your games with a client that displays in-game information.
To ensure low traffic, TCP binary sockets are used in combination with AMF3 encoding. This supports all AS3 datatypes. The Photon Server SDK supplies you with a “policy application”, which provides the necessary policy file for cross-domain connections (swf not hosted on the same server it connects to).
Flash incurs two limitations: It supports only TCP sockets, so UDP is unavailable. The second limit applies only to cross-platform games and means you should only use AS3 datatypes, even if other platforms support more datatypes natively.
To all Flash developers: download and feel free to give feedback.