Ah, Bluetooth was just an example I picked from previous comment. iPod Touch actually has Bluetooth nowadays, it seems. My point was that device manufacturers

Ah, Bluetooth was just an example I picked from previous comment. iPod Touch actually has Bluetooth nowadays, it seems. My point was that device manufacturers drop features from cheaper models because of costs. "This won't make a difference how many units we sell, drop it and we save $50 million!". Nokia does this all the time with their phones. From outside, it can appear as an artificial segmentation, but it rarely is. Now, cameraless iPod Touch? That's definitely deliberate segmentation.