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Wrote this real quick Android ListActivity to display the Resources from the android.R.drawable.  Not very pretty, but I just wanted something to display the images and show the associated Resource id.  Sorry in advance for any wacky formatting issues due to cutting and pasting from Eclipse into the WordPress editor.

ResourceExplorer.java

public class ResourceExplorer extends ListActivity
{ 
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        // define the list which holds the information of the list
        List<Map<String, Object>> resourceNames =
            new ArrayList<Map<String, Object>>();

        // define the map which will hold the information for each row
        Map<String, Object> data;

        // hard coded numbers retrieved from
        // http://code.google.com/android/reference/android/R.drawable.html
        for ( int idx = 17301504; idx <= 17301655; idx++ )
        {
            data = new HashMap<String, Object>();

            try
            {
                String stg = Resources.getSystem().getResourceName(idx);

                data.put("line1", stg );
                data.put("line2", idx );
                data.put("img", idx );
                resourceNames.add(data);
            }

            catch (Resources.NotFoundException nfe )
            {
                // noop ignore
            }
        }

        SimpleAdapter notes = new SimpleAdapter(
            this,
            resourceNames,
            R.layout.row,
            new String[] { "line1","line2", "img" },
            new int[] { R.id.text1, R.id.text2, R.id.img } );

        setListAdapter(notes);
    }
}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">	

    <ListView
 	android:id="@id/android:list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_weight="1"
 	android:drawSelectorOnTop="false"/>

    <TextView
        android:id="@id/android:empty"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:text="No data"/>

</LinearLayout>

row.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/vw1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">    

    <ImageView android:id="@+id/img"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <TextView android:id="@+id/text1"
            android:textSize="12sp"
            android:textStyle="bold"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"/>

        <TextView android:id="@+id/text2"
            android:textSize="12sp"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"/>

    </LinearLayout>

</LinearLayout>

When I run this in the emulator I get something that looks like the following: