I got a reply from Amanita-Design.
Official facebook page is : http://www.facebook.com/pages/Amanita-Design/324637879117Remember that "
Pages" can only be run by true owners. If you are on another page claiming to be Amanita-Deisgn, you are welcome to post on the wall the link of the only page owned by Amanita-Deisgn and/or Report the page as Fake (left column, bottom menu).
"
Groups" can be run by fans thought so you will likely find many...
Hope this help.