À descoberta do mundo Android

Instalar:
http://developer.android.com/sdk/1.5_r3/installing.html (eclipse 3.3)
ou
http://android-er.blogspot.com/2009/07/install-android-sdk-on-eclipse-35.html (eclipse 3.5)

Primeiro exemplo:
http://developer.android.com/guide/tutorials/hello-world.html


Referência:
http://www.android.com/