DoCoMo concept demo video for Portable SIM, wearable bracelet allows UID across multiple touch points: http://bit.ly/ZAJ9Ye
It is the concept of portable movie SIM. Portable SIM of the future a little. By using the portable SIM, 1 day will make you convenient in this way. From smartphone, switching the terminal to the at hand (change to business mode from private mode Portable SIM) login to Business PC change to the private to Business the number of smartphone and private from business mode Portable SIM change to the mode change to business to the number of the private-smartphone to receive the key to the apartment, unlocking a portable SIM sends the ID / password of WEB site, automatic settlement etc.