The Ubuntu Edge is an open device, not locked to any particular network. It works in all countries that provide GSM/3G/LTE-based network services. It will also support the two LTE standards to provide 4G mobile broadband connectivity around the world (subject to network availability and data fees). Before launch we will conduct interoperability testing with networks in Europe, the US, South America, China, India, the Middle East and Africa. This is a normal step in the process of developing a mobile device.