Students can typically forget a number of things when they go to school, namely their books, notes, or term papers. But the one thing many universities are certain that students never forget is their cell phones - and that is why Japanese universities have decided to incorporate student identification cards on their phones.

From next April, all new students at Kanagawa Institute of Technology near Tokyo will carry an ID on their phone that lets them register for classes, open locked doors and surf the Internet for school-related information.

"No student forgets to take a cellphone with him, even if he forgets his textbook," university president Kosei Oguchi says.Students can also use it to buy from the cafeteria, shops and vending machines.