VM IPO bought 50 shares @ $15.70

Today, I bought 50 shares of VM (Virgin Mobile) at $15.70. They have an IPO this morning, the stock price open up at $15, rising as high to $16.63 this morning but then go back down again. I jump in on $15.70. I think this is a great solid company, I seen them selling their phones and service at 7-Eleven, BestBuy, RadioShack and other electronic retailer stores. I missed the VMW IPO and I certainly don't want to miss this one although it's not hyped as much as the VMW's IPO which has P/E of 300 now. I will hold this stock for couple days and if it goes up by then, I will decide whether to take profit or play a bit longer on this one.