Popular web service If This Then That (IFTTT) today launched an iPhone app, bringing the popular service to mobile devices. The service allows users to customize their web services using a set of rules within the parameters of "if this, then that." For example, a user can arrange for a photo taken with their iPhone to be automatically uploaded to their Flickr account or the service can be set up so the user is texted the weather report each morning in addition to whatever other "recipes" users can cook up. The app currently allows interactivity with the iPhone's photos, contacts and reminders, but IFTTT says that "thi