Hi there,
by now this is a 'developers only' announcement! ;-)
At http://www.akustische-kunst.org/puredata/real/ you'll find the new realcast~ external. It can be used to stream RealAudio to a RealServer. It has to be considered beta because I only tested it on my machine and with one single RealServer. It's windows only at the moment but the Helix Producer SDK needed to compile and run it is also available for Linux.
known bugs / limitations: - small audio crackle at buffer boundaries (usually every 5 seconds - I'm far too blind to find the mistake...) - no error message in case connection to server fails (but a very detailed logfile will be written to disk if logging is enabled) - some optional settings missing (e.g. TCP instead of UDP...) - difficult to set up (see readme.txt)
happy streaming,
Olaf