Ice Cream Sandwich GridLayout

Android 4.0 (Ice Cream Sandwich) introduced a new type of layouts: the Gridlayout.
Gridlayout is like the <Table> tag in HTML. child widgets are arranged in Cells made of Rows and Columns.

Grid layout is a ViewGroup that can be used in constructing dashboard activities like that one in the Google Plus application:

so let's see what we can do with the GridLayout:
we'll construct a simple dashboard layout like this:

<?xml version="1.0" encoding="utf-8"?>
<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:rowCount="5"
    android:columnCount="3"
    >

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 1"
        android:layout_row="0"
        android:layout_column="0"
        android:layout_marginLeft="5dp"
         />
    
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 2"
        android:layout_row="0"
        android:layout_column="1"
        android:layout_margin="5dp" />
    
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 3"
        android:layout_row="1"
        android:layout_column="0"
        android:layout_margin="5dp" />
    
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 4"
        android:layout_row="1"
        android:layout_column="1"
        android:layout_margin="5dp" />
    
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button 5"
        android:layout_row="2"
        android:layout_column="0"
        android:layout_margin="5dp" />
    
    

</GridLayout>