The pitch is very appealing to me, and I really to join the beta. However, I'm on a mac. I understand that it's not done yet, but an option to subscribe to a

The pitch is very appealing to me, and I really to join the beta. However, I'm on a mac. I understand that it's not done yet, but an option to subscribe to a mailing list or a news letter so that I'm informed when the mac version comes out would be nice.