According to a Reuters report, Apple wants SIM cards to get even smaller than micro-SIM cards in order to make even thinner devices. With the support of a number of carriers including France’s Orange, Apple has proposed a new SIM card standard to the European Telecoms Standards Institute (ETSI).
Even smaller than the micro-SIM cards in the Apple iPhone 4 and iPad, the new standard would allow manufacturer to make their devices smaller and thinner or fit more or larger components ( such as batteries).
It could take up to a year for the new standard to be accepted by ETSI (assuming it even is), suggesting that the first devices to use it could arrive sometime in 2012.