Android - An Open Handset Alliance Project

What is Android ? The Open Handset Alliance, a group of more than 30 technology and mobile companies, is developing Android: the first complete, open, and free mobile platform.

Open
Android allows you to access core mobile device functionality through standard API calls.

All applications are equal
Android does not differentiate between the phone's basic and third-party applications -- even the dialer or home screen can be replaced.

Breaking down boundaries
Combine information from the web with data on the phone -- such as contacts or geographic location -- to create new user experiences

Fast & easy development
The SDK contains what you need to build and run Android applications, including a true device emulator and advanced debugging tools.