http://the.unwashedmeme.com/blog/2010/06/22/using-a-local-emacstramp-as-your-editor-on-remote-servers-with-ssh-and-emacsclient/

mssh.sh

#!/bin/bash
#read from emacs server file what port it is currently listening on
PORT=`egrep  -o '127.0.0.1:([0-9]*)' ~/.emacs.d/server/server | sed 's/127.0.0.1://'`

HOST="${@: -1}"
echo "Found host '$HOST'"

ssh "$HOST" "mkdir -m 700 -p ~/.emacs.d/server"
scp -p ~/.emacs.d/server/server $HOST:.emacs.d/server/server

#-R : the remote port forward that lets emacsclient talk back
#$@ : any other args this script was invoked with should be passed along.
ssh -R $PORT:127.0.0.1:$PORT $@

trampify.sh

#!/bin/sh

if [ -n $ALTERNATE_EDITOR ]; then
    ALTERNATE_EDITOR=nano
fi

if ! which emacsclient; then 
    echo "no emacsclient"
    $ALTERNATE_EDITOR "$1"
    exit
fi

SERVER_FILE=~/.emacs.d/server/server

if ! [ -r "$SERVER_FILE" ]; then
    echo "No server info file."
    $ALTERNATE_EDITOR "$1"
    exit
elif ! emacsclient -f ~/.emacs.d/server/server -e "t"; then
    echo "Connection to emacs failed."
    rm -f "$SERVER_FILE"
    $ALTERNATE_EDITOR "$1"
    exit
fi
  

#build the tramp filename
case $1 in
     /*) FN="/`whoami`@`hostname`:$1" ;;
     *) FN="/`whoami`@`hostname`:`pwd`/$1" ;;
esac

echo "$FN"
#we point it at the file written by the ssh wrapper for port and auth
#information
emacsclient -f ~/.emacs.d/server/server "$FN"
exit