With convergence of user interface, of specifications, and indeed of style and appearance, we could be forgiven for thinking that Apple are converging all their products to be familiar, even identical, apart from screen size. Even the rumors we read about use naming conventions that push towards such convergence.. the whole Pro/Air/Mini/Nano naming styles, such as the rumoured 'iPad Pro'. But Apple haven't exactly followed that convention, introducing the iphone 6+. Further, they seem to strengthen the branding of each product line, with increasing differential specification. So are we going to see a future where there is iDevice. But at screen sizes of 38mm, 42mm, 4", 4.7", 5.5", 7.9", 9.7", and many others in between? I don't think so. 1. The individual product branding names are too strong (in a good way). 2. There is no sign of convergence across pricing: - These graphs are based on the currently products, and their UK pricing. And all for 16GB models (including cellular). [iPhones in red, iPad Minis in green, iPad Airs in blue.] There are no definite correlations based on the screen through the product lines, just within each product. the mini iPad being the best value, and the iPhone most expensive. The chip generation seems to correlate with price.