UPDATE:
Thanks everybody for signing up, it only took a couple of days for the list to basically completely fill up - I think we already have twice as many volunteers than we'll be able to manage :)
I'm removing the link, hopefully everybody who signed up from here is in, as we announced it here first (we'll simply use the order people signed up, no lottery :) ).

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Hi, we planned to set it up closer to the actual date, but seeing the interest, here (was) a mailing list for the beta where you can sign up directly.