You can trade bitcoins futures there if you want to. I wrote and asked them about enabling peercoins futures trading. From what I gather, they have no plans for supporting any AltCoin. I asked them why and the response I got was that it is basically an ideological thing.
I don’t know what to do with this information, but perhaps it could be of value for those of you out there who are doing some thinking about how Peercoin should be marketed.