The application was built on Google Appengine, Django, and the Facebook Graph API. I'm checking for status changes every 24 hours, and am using the Appengine mail service to send emails whenever I notice that a relationship status has changed.
Seriously, this is mostly a joke. But enjoy, if you do choose to use it for real.
24hrs is not 'be the first to know', probably all her/his friends will know that before. When I changed status I had a dozen comments in SECONDS.
However, there's probably some worthwhile activity in monitoring wall posts from ex's in the period running up to the status change?
Humans are completely unpredictable mind... haha :)
I'm the Product Manager of PostageApp, would you mind if I sent you an email about how Appengine's email service is working out for you?