In July 2005, Google acquired Android, Inc., a small startup company based in Palo Alto, CA.
Android's co-founders who went to work at Google included Andy Rubin (co-founder of Danger), Rich Miner (co-founder of Wildfire Communications, Inc.), Nick Sears (once VP at T-Mobile), and Chris White (one of the first engineers at WebTV).
Introduction- What is Android ? http://www.xebia.com
Android is a software platform for mobile devices, powered by the Linux operating system, initially developed by Google and later the Open Handset Alliance  .
It allows developers to write managed code in the Java language, controlling the device via Google-developed Java libraries.
Exact opposite to J2ME and BREW, your app will be deployed each subsequent run or debug
Installing and Using the SDK
http://www.xebia.com Building Blocks of Application Activity An activity presents a visual user interface for one focused endeavor the user can undertake. Intent An intent is an abstract description of an operation to be performed. It can be used with startActivity to launch an Activity, broadcastIntent to send it to any interested BroadCastReceiver components Services A service doesn't have a visual user interface, but rather runs in the background for an indefinite period of time Content Provider A content provider makes a specific set of the application's data available to other applications.
Google groups: For application development: http://groups.google.com/group/android-developers For platform development: http://groups.google.com/group/android-platform IRC: #android on freenode anddev.org is a good source for example and tutorials References