Do more with less, use uc_country_select() to fill a block

The laziest way to make a block with the countries you deliver to:

<?php
$countries
= uc_country_select(uc_get_field_name('country'));
foreach(
$countries['#options'] as $i => $country) {
 
$items[]= t($country);
}
if(
count($items)) {
  return
theme('item_list', $items);
}
?>