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Yesterday, Twitter and the tech blogs were all of a flutter about a 128GB iPad. The problem, it seems, is that this thing is hugely expensive. That’s OK -- you’re not going to buy one.

Their own way

First thing to consider about the iPad is that iOS is the only mobile operating system that does not provide a way to expand its storage. (Although some devices like the Nexus 7 don't have a slot, the OS provides a way to do it.) That means that if you happen to need a ton of on-board storage, Apple has to solder it onto the logic board when you buy it.