Just thought I'd mention that the slowness of scons mostly comes from it MD5 summing the files to check if source files have changed.
You can make it use timestamps like most other build tools; SourceSignatures("timestamp") - usually speeds things up significantly.
Re: Any other network services using Multicasting?
> Another service that uses multicast is
> NTP - apparently serving up time is very
> much a broadcast style of service.
NTP by default doesn't seem to use multicast.
An app which imho can do very cool things(if apps would support it) is www.openslp.org ..