Possible to have mutiple rows for each post/page in the admin table listing?

You may need to play around with CSS a bit. But for me following CSS does the trick.

Basically

1. Increase the height of each row.
2. Shift all cells (td, th) down a bit (using padding-top)
3. Reset the padding-top for Title column and position it absolutely with appropriate left and right values.

Hope that helps

add_action('admin_head', 'my_custom_style');
function my_custom_style() {
    echo '<style>
    .type-post {
        height: 100px;
    }

    .type-post td, 
    .type-post th, 
    .type-post .fixed .column-comments {
        padding-top: 50px;
    }

    .type-post .column-title.page-title {
        padding-top: 0px;
        left: 35px;
        right: 20px;
        position: absolute;
        /*border: 1px solid red;*/
    }
    </style>';
}

Alternatively you can put the CSS in external file and include it like:

function admin_style() {
  wp_enqueue_style('admin-styles', get_template_directory_uri().'/admin.css');
}
add_action('admin_enqueue_scripts', 'admin_style');

Note that its ‘admin_enqueue_scripts’ and not the standard ‘wp_enqueue_scripts’