A new photograph has appeared showing a 4G-equipped Micro-SIM card that AT&T will be using for upcoming high-speed smartphones.

What do you do when you’re trying to sell your network to geeks? For a T-Mobile spokesman, it involved pointing out that the carrier is currently home to over 1 million unlocked iPhones, even though those devices aren’t officially supported by the carrier.

In its quest for ever-shrinking hardware, Apple has proposed a new, smaller SIM card for its connected devices according to Reuters. The new design, which is even smaller than the current iPhone 4’s micro-SIM has apparently already won the backing of French telecom giant Orange.

Ever fancied having two SIMs in your iPhone 4, which is of course either factory unlocked or hacked to run any carrier SIM you like? Well apparently, USBFever has come up with a solution which could be very useful if you like hopping around two networks. The Dual SIM Card Adaptor allows you to hook two SIM cards with the help of a clip, which goes around the iPhone 4 and is held tightly together with a transparent back cover case which it ships with.