T-Mobile has made a micro SIM card available that will fit into the Apple iPhone 4 and Apple iPad. People who have an unlocked iPhone 4 will be able to use this micro SIM card with their device to access voice and data services through T-Mobile. T-Mobile explains, “Already have [an] iPhone that you need to activate? Just get a micro SIM card and choose a plan.

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T-Mobile Now Selling iPhone 4-Compatible Micro SIM Card

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