Apple Thoughts: Come Kids, Time For an iPhone

"While everyone talks about the iPhone, the mobile device's non-telephone sibling the iPod touch continues to grow its market share at a clamorous rate, leading mobile analytics firm, Flurry, to call it Apple's 'weapon of mass consumption'."

Yea, once you hook them it is hard to switch it up. Get the youngsters used to using an iPod Touch and the transition to the iPhone when they come of age, or can afford it, makes a lot more sense and certainly is easier to do if you are already invested in the platform.