Just hours ago, RIM and Motorola submitted an updated proposal for the design of the so-called 4FF nano-SIM, a smaller replacement for the 3FF micro-SIM used in many phones today (most notably the iPhone 4 and 4S). Debate between competing nano-SIM designs — one from Apple, another from a joint group of RIM, Motorola, and Nokia — has grown intense over the past several months within the European Telecommunications Standards Institute (ETSI), the body ultimately responsible for SIM standardization worldwide.
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