#!/bin/sh

    n=10
    while [ $n -ge 0 ]; do
    	sh -c "while true; do curl -d submit.x=1 -d submit.y=1 -b clickthatbutton=10521 http://clickthatbutton.com/; echo; done" &
    	n=`expr $n - 1`
    done

Change "n=10" to change the number of concurrent requests. Anyone have a better method?

Nice approach, My friend and I were trying to do the same thing. http://juliocapote.com/post/56866975/so-you-want-to-click-th... bookmarklet version: http://ubergibson.com/~alan/bmforge/

Is hackthatbutton.com taken?

C/MPI!