I'd be more than happy to get an invite code comehow, be it through mailinglist or someone who wouldn't mind giving me one - but I have trouble joining the mailing lists. I tried to do so several times and somehow it never seemed to work :-/ Any idea why?

I will wait for open beta and pay for an (normal) accout to create one if nothing works out - will this be possible for international users who do NOT have a credit card?

Well, like I said above, I'd also be happy if I don't have to wait that long :) If someone knows how to put me on the mailing list or wants to gift me with a code (I'd be grateful forever!), please mail me at el.fy @ web.de