All I saw at the meet was Rio 600s and the Nike player, no Rio 800 or 800 Extreme.

As far as hard drive players, I'm waiting for one to come out of Rio. I'm actually suprisied that noone from the meet talked about this here yet. While Rob, Hugo, or the others never said anything specific, it's pretty certain a hard drive based player will exist with a "Powered by empeg" on it, and also it will possibly syncronize with the empeg-car/Rio-car.