"The killer application in mobile service is decided by response time,” Professor Nicholas Negroponte at MIT said during an interview in the middle of the LG Technology Forum.

In his keynote speech, "The Future of Wireless," Prof. Negroponte emphasized the right direction of change for mobile handsets. He insisted that any new function of handsets should be downloadable, but phone makers are just adding new functions in the device like inserting new tools into Swiss Army knife.

About the power efficiency, he said, future mobile handsets should be designed to be inserted in shoes so that people can use their phone while they are running or the battery system should be simple so that users have only to shake their phones to recharge them.

He emphasized simplicity, saying the industry always talks about easy-to-use interface, but nothing has been done; the smaller the handset gets, the thicker the manual becomes. He cited Swatch as an instance of the way the future wireless devices should take. According to him, although Swatch is widely known as a famous watch brand, it is the concept of "second watch" that the company has pursued. Likewise, he recommended, the handset industry should try for the "second handset." Selling more handsets at lower price will lead to large profit, the renowned professor added.

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