Custom Post Type Query - Wordpress 3.0

/**
 * Do the work to pagination work on custom post types listing pages.
 * OBS: Importante lembrar que a pagina de listagem não pode ter a mesma key do post_type
 *
 * @author @rafaelxy
 * @param array $query args array, as it works on wordpress (dont use it as string)
 * @return array set global $posts and return it as well
 */
define('PER_PAGE_DEFAULT', 10);
function custom_query_posts(array $query = array())
{
    global $wp_query;
    wp_reset_query();

    $paged = get_query_var('paged') ? get_query_var('paged') : 1;

    $defaults = array(
        'paged'             => $paged,
        'posts_per_page'    => PER_PAGE_DEFAULT
    );
    $query += $defaults;

    $wp_query = new WP_Query($query);
}