Hi,
I'm using the Development version (0.5.4.2).
The Domains listing was not showing all my domains (30+), and there's no pagination nor screen option to increase the total domains being displayed.
I checked the plugin code and modified line 204 of domain_mapping.php to this:
$rows = $wpdb->get_results( "SELECT * FROM {$wpdb->dmtable} ORDER BY id DESC LIMIT 0,200" );
Two hundred instead of the original 20.
Not a perfect solution, but enough to my actual needs.
http://wordpress.org/extend/plugins/wordpress-mu-domain-mapping/
