When are we getting a VWAP (or some other mechanism) to set the clearing price? While I'm not personally very concerned as far as my own trading, a better mechanism would add to the legitimacy of the exchange. This is in response to akwfleaspirit, who, while certainly misinformed about a lot, is right that it's way too easy to manipulate the clearing price.
A "clearing cross" like NYSE's open/close crosses might help, and as a bonus you can put in margin called positions so they have access to the hopefully greater liquidity. It's also an established point in time to do lots of liquidity - if you can get traders to gather at these times, you may see more trading overall. A good cross can also simplify trading for those who don't want to babysit their limit orders.