SLF4Fx is an open source suite of Flex3 logging target that send messages to slf4fx server. The server writes all incoming messages to log using java Simple Logging Facade for Java (SLF4J). SLF4J works with all well-known java logging projects.
SLF4Fx uses simple binary protocol to transfer log records between client and server. It provides simple authentication mechanism that could be used to log specific application instance. More details on http://code.google.com/p/slf4fx/