Filed under: iPhone, SDKToday at the iPhone 4.0 preview event, Apple announced that one of the new features coming in 4.0 is the iAd network. According to Steve, an average iPhone user is on their phone using apps about half an hour a day. So at one ad every three minutes, that's 10 ads on each device each day, and with almost ten million devices out there, Apple claims they'll be serving a billion ad opportunities every day.
And yet this isn't the huge news about iAds. Here is what makes it a big deal: Apple built the network and is offering it up to developers to use
