From R15B01 you can actually use "plugins" for process registering using the {via, Mod, Key} syntax.

Gproc supports this and using it you can do stuff like:

  gen_server:start_link({via, gproc, {Your, "very", <<"complex">>, key}, [...])

you can also roll your own.

Docs: http://www.erlang.org/doc/man/gen_server.html#start_link-3