Android
Seamless Android SDK Integration
You can add Android support when creating a new project and specify the path to the SDK.
Once configured, you can use wizards such as Create Activity to generate Android code (using the regular Alt+Insert shortcut in the Project tool window).
Deploy Right from the IDE
Once you create your Android application you can simply hit Run to test it in the emulator.

Code Completion and Navigation
You can use the usual IntelliJ IDEA shortcuts to invoke code completion and Go To Declaration actions while working with the Manifest files. Code completion works for Android-specific actions, too.

Preview in Android Manifest
To preview icon of your Android application you open AndroidManifest.xml, put the cursor on @drawable/icon and press Ctrl+Shift+I (IntelliJ IDEA's regular shortcut for preview).

