Today when I went to the postmaster I got an item called "strange coin" all it says is that its 'rare currency' not sure if everyone else got this but the point is that they gave me this item as a reward for beta so it makes no sense to wipe it once the full game is released, I'm not sure what will happen but just the fact that they are giving away items in beta hints towards the idea that you'll be able to keep the stuff you've already acquired, guess we'll see. . .