I don't recall having to accept any terms and conditions and received no legal notice. There are none on that page; and none in the email. I assume this is quite a large public beta as they didnt seem to care too much.
Think I clicked the link on the 6th Oct - got email on the 14th ; so about a week assuming it's not down in rounds of people.
Started by Jéré
Started by wamboyil
Started by Willem
Started by The-Edge
Started by Meepledrone