I am using the code from SVN (r229), and was able to load everything fine, after I got the latest CEDET installed. When I try and join a running gobby session, it fails to join with the error: rudel-join-error. The following is in my *Messages* buffer:
Discovering Sessions ... [2 times]
Using backend `obby'
Making completion list...
Use encryption? (y or n)
Received Obby welcome message (version 8)
tls-wait-init: switching back to old filter
tls-start-tls: switching to tls handshake filter
tls-wait-handshake: switching to established filter
Use encryption? (y or n) y
byte-code: Could not join session: rudel-join-error
Quit [2 times]
call-interactively: End of buffer
Desktop saved in ~/.emacs.d/desktop/
I'd be happy to provide any other information that would be useful for debugging this!