Access multi-site tables with TW?

Mike, thanks for the answer. I hope you don't mind I'm following up in this same issue with the problems I'm encountering. I'm using TW 1.1-beta1, Views 2.6 and Schema 1.4.

This is now in my settings.php:

$db_url = array(
  'default'  => 'mysqli://username:password@localhost/databasename';
  'internet' => 'mysqli://username:password@localhost/databasename';
);
$db_prefix = array(
  'default'  => 'intra_', // intranet tables are prefixed with 'intra_'
  'internet' => '',       // internet tables are prefixed with 'inter_'
);

On admin/content/tw, the internet tables are shown in the 'add existing tables' fieldset. The table names listed in the #edit-existing-lists-default select box are not prefixed. Tables in #edit-existing-lists-internet are already prefixed with 'inter_'. When I select table 'inter_node' and try to add it, I get a list of error messages, all starting with "user warning: Table 'databasename.intra_inter_node' doesn't exist", originating from different lines (316, 319, 323, 329) in tw.module.

After that, the inter_node table does get listed in the 'tables table' and the correct columns show up on admin/content/tw/analyse/3, but when I reanalyze, the same errors appear.

On admin/content/tw/view/inter_node, I get two errors, again starting with "user warning: Table 'databasename.intra_inter_node' doesn't exist", but this time originating from views/includes/view.inc lines 729 and 755.

I hope I can help you fix this issue as a way to say "thanks for this great module", but right now, I'm not sure in which direction to search for the solution.

OOPS! I could just edit the above, hope that nobody has seen it, and still look really smart... but I guess I'll just leave it there for future reference :-)
I just noticed that I overlooked an important detail: overwriting the prefix is done on table level, not on db-connection level. So this works:

$db_url = array(
  'default'  => 'mysqli://username:password@localhost/databasename';
  'internet' => 'mysqli://username:password@localhost/databasename';
);
$db_prefix = array(
  'default'  => 'intra_', // intranet tables are prefixed with 'intra_'
  'inter_node' => '',     // internet tables are prefixed with 'inter_'
);