Hi. A few days ago I picked up my nano-SIM from my local O2 store. Within the pack you get a couple of adapters so if you're currently using a micro-SIM or a fully sized SIM you can use one of the adapters and insert the new nano-SIM into any device you want. Very handy. Just swapped my number from my micro to nano SIM so once I get my iPhone 5 from Apple I'll be ready to go straight away!!
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