What is the main idea of the news item? [originaltext] "Japan will start an a

"Japan will start an aggressive push to market abroad its mobile technology, especially the nation’s popular wallet phone. " A government official said Tuesday. (Q6) Although Japan boasts some of the most sophisticated cell phones in the world, the nation has failed to make it handset-wireless technology and mobile services-hits outside of Japan. Among the wireless innovations Japan hopes to peddle is the wallet phone. The technology relies on a tiny computer chip embedded in each cell phone, which communicates with a reader device at stores, train stations, and vending machines for cashless payment. This tiny computer chip was developed by Japanese electronics and entertainment company — Sony Corporation.