Pre-installed apps included Gmail , Google Maps (with Street View), YouTube , Calendar , and Talk .

Unlike modern versions, Android 1.0 was designed for devices with physical hardware buttons and keyboards.

Android versions: A living history from 1.0 to 16 - Computerworld

The release of on September 23, 2008, marked a pivotal moment in mobile computing history . Initially launched on the HTC Dream (known as the T-Mobile G1 in the United States), it laid the groundwork for the most widely used mobile operating system in the world. Core Features and Early Innovation