Fon has officially launched a beta version of its wiki, you can check it out at http://wiki.fon.com and for any feedback or etc. send an email to email@example.com
"The BT FON Facebook application, called Battle of The Fans, is doing very well and is now one of the most popular UK focused applications, with over 31,000 users and more then 7,000 waves generated. It’s part of a very successful marketing campaign that started with The World’s Biggest Mexican Wave initiative."
Martin's Blog: "The BT FON Facebook application is one of the most popular in the UK"