nevermind guys: So the first trade goes out to the market orders. The price they pay is a "reasonable" amount higher than the limit orders in the queue. What the price winds up being is anyone's guess.
But it is important to understand: there were no trades in the gap.
When Briefing.com reports that an IPO has opened at $60, when the IPO price was $15, there weren't any trades at $30 or $40. The price just jumped, just like it does for non-IPO stocks overnight on news.
You haven't missed out on a $45 opportunity when you see that an IPO has risen from $15 to $60 on its first trade. The opportunity was never there.