PageRank of 6 & Never Indexed

How can a site: http://tinyurl.com/nywamr, have a PageRank of 6, yet never been indexed by Google.

I've carried out some checks, meaning does the page have this code:

/* insert a cloaking script here to detect whether the visitor is
Googlebot */
if (Googlebot) {
echo '‘;
exit();
}
else {
echo “

My PR10 page!

“;
}
?>

No, it doesn't. So how can a site generate such a wonderful PageRank yet never have had the pleasure of Google's bots? - Answers please.