Korean wireless carrier SKTelecom is demonstrating a rather novel concept for easing the typical tedium associated with swapping out phones and having to reapply customizations as well as the exchange of contact information from one device to another using Android.
The Android SIM concept as explained in the companion video allows for a user to carry a heavily customized Android build with complete settings and contact information from one phone to another without having to spend time adjusting settings or dealing with contact entry.
The SIM contains a complete build of Android, 1GB of memory and processor in a standard USIM package which would theoretically allow devices to be manufactured without NAND flash, dedicated processors or other components that typically drive up the cost of manufacturing such devices, simply needing a display and keyboard interface to function properly.