To the surprise of no one, today Apple unveiled the fourth version of its iconic device: iPhone 4. While some features such as the higher resolution camera, LED flash, and front facing camera qualify more as upgrades that put Apple back on par with leading competitors, others such as the "retina" display and the gorgeous industrial design will maintain Apple's mindshare and market share growth rates.
Apple is going to sell a lot of iPhone 4s. They'll sell them to those who simply have to have the new new thing (many of whom are iPhone owners already), and to iPhone owners who were off contract and waiting for the new version. They'll also sell a lot of iPhone 3GSs, especially to iPhone 3G owners who can't stomach going without iOS 4's multitasking, and also to those for whom $15/month is a manageable addition but $30/month is not. That's a whole lot of good news for AT&T and Apple's other carrier partners, though that good news is more in the form of loyalty than in net additions to their networks.