Google (NASDAQ: GOOG) will release details about its wireless service as early as Wednesday, according to the Wall Street Journal. The service is expected to allow customers to pay for only the data that they use. However, this is not uncommon, with other carriers like T-Mobile and AT&T allowing customers to roll their unused data to the following month. For the past two years or so, Google has been working on its mobile service unit, making it more than 100 times faster than the national average, the Wall Street Journal reported. “While Google may not be targeting huge numbers of subscribers, their entry into this market is very important, because it has the potential to disrupt the wireless industry in much the same way Google Fiber prompted changes in the cable and broadband industries,” Rajeev Chand, head of research at Rutberg & Company, an investment bank focused on the mobile industry, said according to the Wall Street Journal.