>the problem i see with your suggestion is that can you guarantee that
>non *bsd clients will work; i.e, do all their clients bind to <1024
>if euid==0? i believe that netbsd does it because it was modified
>so that if euid==0 it binds a reserved port otherwise it binds
>a non reserved port.

In Sun's reference implementation: 

/* @(#)clnt_tcp.c	2.2 88/08/01 4.0 RPCSRC */
/* @(#)clnt_udp.c	2.2 88/08/01 4.0 RPCSRC */

always attempt to bind a reserved port.
So I'd say its reasonable to expect most implementations
to do the same.

--sjg