Displaying wp_list_pages in 2 Columns

A number of people on the forum have asked how to display wp_list_categories and wp_list_pages in 2 Columns.

wp_list_categories in two columns has been provided in a number of ways, including the simple code below (courtesy:
http://www.livexp.net/wordpress/display-list-of-wordpress-categories-in-two-columns.html.)
I have spent ages fiddling with it to adapt it so it will display wp_list_pages in 2 columns. Just cannot quite get there.

Is there anyone who knows how this might be done.

Many thanks.

<?php
$cats = explode("<br />",wp_list_categories('title_li=&echo=0&depth=1&style=none'));
$cat_n = count($cats) - 1;
for ($i=0;$i<$cat_n;$i++):
if ($i<$cat_n/2):
$cat_left = $cat_left.'<li>'.$cats[$i].'</li>';
elseif ($i>=$cat_n/2):
$cat_right = $cat_right.'<li>'.$cats[$i].'</li>';
endif;
endfor;
?>