It's not just me:
http://downforeveryoneorjustme.com/source.squeakfoundation.org
I'm getting a '502 Bad Gateway' error ... I seems to have broken in the last hour or so ...
It also appears that the squeak mailing list is down --- which is why I've sent the mail here --- The FFI code is hosted on http://source.squeakfoundation.org so this will likely impact others as well ...
Dale