T-Mobile G1 is the first mobile phone that comes with Google Android as it’s Operating System.

Android is an open operating system and platform that is based on the Linux kernel. In addition, it has a middleware application and other valuable development tools. Developed by Google, Android is designed to work with mobile devices. As a result, developers can use Google-developed Java libraries to write managed code in a Java-like language. However, Android does not work with programs that were developed in native code.