After looking into it, I have no reason to believe that ?Alpha Omega? and Mindstorm Labs doesn?t exist. They don?t try to hide the fact that ?Alpha Omega? is their first table top RPG (every company has to start somewhere). And like people said, the domain name was registered back in 2006.
And as far as them not being listed on the exhibitors page at GenCon Indy, they seem to be on there when I look. http://www.gencon.com/2007/indy/exhibitors/exhibitors.aspx so I?m pretty sure it?s safe to assume that they do, in-fact, exist and have a game coming out at some point.