The very simplest of notepads for your Dashboard.
<?php dashboard_notes(); ?>template tag.
[dashboard_notes]shortcode. (To use it in a widget, you'll have to enable shortcode parsing in text widgets, if you haven't already. Add
add_filter('widget_text', 'do_shortcode');to your functions.php file.) You can use
div#dashboard-notesin your theme's CSS file to style the notes.