By request, here’s a quick function I whipped up to generate some basic tag cloud HTML from the output of the silly_list function:
[php]
function get_tag_cloud_html($freetag, $num_tags = 100,
$min_font_size = 10, $max_font_size = 20,
$font_units = 'px', $span_class = 'cloud_tag',
$tag_page_url = '/tag/') {
$tag_list = $freetag->silly_list($num_tags);
// Get the maximum qty of tagged objects in the set
$max_qty = max(array_values($tag_list));
// Get the min qty of tagged objects in the set
$min_qty = min(array_values($tag_list));
// For every additional tagged object from min to max, we add
// $step to the font size.
$step = ($max_font_size - $min_font_size)/($max_qty - $min_qty);
// Since the original tag_list is alphabetically ordered,
// we can now create the tag cloud by just putting a span
// on each element, multiplying the diff between min and qty
// by $step.
$cloud_html = '';
$cloud_spans = array();
foreach ($tag_list as $tag => $qty) {
$size = $min_font_size + ($qty - $min_qty) * $step;
$cloud_span[] = '' .
htmlspecialchars(stripslashes($tag)) . '';
}
$cloud_html = join("\n ", $cloud_span);
return $cloud_html;
}
Feel free to tweak as you please. I wrote the code and tested by adding a tag cloud to eatlunch.at, so I can guarantee that it works. 
$freetag is supposed to be an initialized freetag object.
As a side note, eatlunch.at is horribly unmaintained right now. I’ve got to rewrite it soon.
WordPress is a TOTAL NIGHTMARE for posting code.
It looks like it does single-party management, with categorization, list of eateries by last access (a point of argument on eatlunch.at), and automated emails. This one actually does a final email that’s supposed to be authoritative at 11:00 am (more on that later) – Found as the #1 result for ‘vote for lunch’ on google.