Google has unveiled a US wireless service that switches between Wi-Fi and cellular networks. The new service was named Project Fi. It is now available only to owners of smartphones Nexus 6. Basic services package costs $20 a month, and extra sum of $10 has to be paid for each gigabyte of data used, the company’s official website reads. In other words, Google has launched its own mobile network that will be hosted through US operators Sprint and T-Mobile for now. The technology supposes that a user will be automatically connected to the fastest available Wi-Fi hotspots of these operators. This could be both Wi-Fi networks and 4G or 3G. The market paid proper attention to the event, and the company’s stocks grew 1.2% following the news. Google’s specialists worked at launching Project Fi for about two years. Now, the company hopes to increase the number of OC Android users through the development of its own Internet connection for mobile phones. Moreover, the service will provide a fresh opportunity to earn on adverts. Probably, the project will manage to smooth Google’s financial situation. The corporation revenue rose only 15% to $18.1 billion in the fourth quarter of 2014, while the Wall Street analysts had anticipated growth to $18.46 billion.