> 
> 	It would also be cool if the xdm login dropped an entry in the
> utmp file, but that's just icing on the cake.

I have written a small program to drop a suitable line in the wtmp file when 
someone logs through xdm. The source is available on 
ftp://ftp.df.lth.se/pub/netbsd/Xwtmplog/. IT could probably be modified to 
write to utmp as well.

Peter