Audience members voted on companies by downloading an app that gave them "virtual shares" in each company. Game participants were encouraged to buy or sell shares of the stock based on how good of a product each company had. The price of each company's shares were projected in real time so you could see how each new company's presentation affected the value of the preceding companies!
Then I spent the entire day wandering the enormous exhibit hall chatting with vendors and trying to figure out if there were any companies that my new company should be working with.
Wednesday morning was more of the same. Wandering the exhibit hall trying to sort through the hype. One of the few really fun exhibits was a vending machine that allowed you to purchase a drink by sending a text message and accepting a charge on your phone bill.