check-drawables
This script checks each drawable in PROJECT/res/drawable (and related folders) and searches all xml and java source files to determine if the drawable is used in the project.
check-layouts
This script checks each layout in PROJECT/res/layout (and related folders) and searches all xml and java source files to determine if the layout is used in the project.
The code may be found at http://code.google.com/p/android-developer-scripts/
