Sounds good, let us know.
When I discussed it with Rackspace they said that cURLing to the server resulted in 403 forbidden errors when attempting to connect to http://connect.advancedcustomfields.com/index.php?a=get-info&p=pro :
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>403 Forbidden</title>
</head><body>
<h1>Forbidden</h1>
<p>You don't have permission to access /index.php
on this server.</p>
<p>Additionally, a 403 Forbidden
error was encountered while trying to use an ErrorDocument to handle the request.</p>
<hr>
<address>Apache Server at connect.advancedcustomfields.com Port 80</address>
</body></html>
and when trying to access http://assets.advancedcustomfields.com/add-ons/add-ons.json:
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>403 Forbidden</title>
</head><body>
<h1>Forbidden</h1>
<p>You don't have permission to access /add-ons/add-ons.json
on this server.</p>
<p>Additionally, a 404 Not Found
error was encountered while trying to use an ErrorDocument to handle the request.</p>
<hr>
<address>Apache Server at assets.advancedcustomfields.com Port 80</address>
</body></html>
