There's a good article at O'Reilly Net that introduces Zeroconf ("Rendezvous" for all you Apple fans), Mutlicast DNS, and talks a bit about Microsoft's push for Universial Plug n Play (UPnP).
From the sound of things, Rendezvous has a chance of becoming the standard. But it's a bit too early to know anything for sure.
Posted by jzawodn at December 21, 2002 03:54 PM
Here's a Python implementation to help it reach that point.
http://radio.weblogs.com/0105002/categories/technical/2003/01/01.html
I wouldn't count on zeroconf becoming an standard until firefox bundles a zeroconf sidebar by default :(
The Bonjour package for Windows from Apple only has a sidebar for internet explorer. And on linux, you need konqueror if you want to browse the zeroconf neighbourhood