I found out more on Hubert this morning including the person who designed the icon.
I was on the MacHeist forums and I saw this post on how the certificate for whoishubert.com is signed by www.etalageapp.com which is basically a duplicate of madebysofa.com. It has a link to http://www.vanhugo.com/ which says that he is an icon designer. It shows his works at the bottom which include the icon for Hubert. It also includes a Lincoln Hubert which happens to be the avatar of a guy on the Macheist forums. Could this person be van Hugo. are we onto something?