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Apple vs. Nokia, RIM and Motorola On Nano-SIM Standard
angry tapir writes "Next week, two proposals for a new, smaller SIM card, dubbed nano-SIM — one backed by Apple and the other by Nokia, Research In Motion and Motorola Mobility — will go head-to-head as ETSI (the European Telecommunications Standards Institute) decides which card future smartphones and tablets will use. Measuring approximately 12 millimeters by 9 millimeters, the new SIM will be about 30 percent smaller than the micro-SIM. The thickness of the cards has been reduced by about 15 percent, according to Giesecke & Devrient. The nano-SIM is also approximately 60 percent smaller than traditional-size SIM cards."
Probably most people don't realise that full sized SIMs were credit card sized.
How about a /sim/-folder on the microSD?
Your phone provider could just email the file to you, you copy the file to the card and turn on the phone.
I doubt its a cost issue; people keep saying on here "Oh, the regular one is small enough to not impact the phone size" and "Oh, the micro-SIM is small enough...." But, that's just missing the point. Its not the phone size Apple wants to change: its that they very much want the iPhone to turn into the Doctor's Blue Box and cram more into it without the size changing.
If you look at the teardown of modern iPhones, you should notice just how densely packed they are-- and /any/ space savings means either more battery (likely), or some place to fit another chip in to provide some sensor or feature. Every little bit counts these days. Look at the teardown: the micro-SIM is to your fingers but it and its supporting space is significant on the scale of the device and its packed electronics.
If they want to add more (more chips, more battery, more anything) they can only a) increase the device's size, b) take something out, or c) shrink something already in. They're trying to do c) and everything is on the table for shrinkage.