I was wondering if http://urlgo.com works for affiliate link forwarding? It shortens things to xxx.urlgo.com, but when you go to the site, it doesn't actually change the url in title bar. Does it actually give you the commissions than, if you use a url-go link?
This is more likely to be a powercloak. My experience says that it should works for clickbank, and some other affiliate links. But, you might face problem if your product is using paypal as payment processor. so, just be careful. hope this help.