Quick little script to cause a text area to contain bullets on each newline. Adapted from: http://jsfiddle.net/abhiagrawal87/m39xt/

bulletedTextArea.jQuery.js

(function($) {
  $.fn.bulletedTextArea = function() {
    var ele = $(this);

    var correctBlank = function() {
      if (ele.val() === '' || ele.val() === '•') {
        ele.val('• ');
      }
    }

    this.focus(function() {
      correctBlank();
    });

    this.keyup(function(event) {
      var keycode = (event.keyCode ? event.keyCode : event.which);
      if (keycode == '13') {
        this.value += '• ';
      }
      var txtval = this.value;
      for (i = 1; i <= 2; i++) {
        if (txtval.substr(txtval.length - i) == '\n•'.substring(0, i)) {
          this.value = txtval.substring(0, txtval.length - i);
        }
      }
      correctBlank();
    });

    return this;
  };
})(jQuery);

$('#listtest').bulletedTextArea();

Oops, can be buggy. Type quickly and hit enter a bunch and it has a tendency to forget the newline...