At last, so when back in november 2005 I first ran into Fon , I ranted on them not documenting how to install their software on a standard Linux box , seems like now they have these kind of tutorials/packages e.g for Mandrake.
Time passed and while I initially had downloaded their source code and planned on documenting and building my own fon platform with my existing firewall and accesspoint, by magic Last week I won a WRT54GL at the NLUUG Conference.
So here's the documentation for dummies :)
After boot the device, you connect a machine to it and get an ip from the device. Then you can go to the webinterface , no username password admin.
From there you can go and upload the Firmware you downloaded.
Wait. , Reboot.
I think my Linksys lived about 5 minutes with it's original Firmware :)
At that time you can retry to connect to the device again via a new dhcpd lease.
You'll get a totally new application, this time your router is running Linux powered by Fon. Configure all your stuff then connect via a wirelles device to it, get a lease, then try surfing to the outer world. Fon will redirect you to their site where you can choose between becoming a Bill or a Linus, off course you want to become a Linus.
From there you can start adding friends and configuring your homepage. Off you go.. now you are a Fonero !
PS. I've got 3 Fon gets Fonero invitations left providing you with a Fon router for 20 euro.