The Adform iOS SDK by Vladas Drejeris enables API communication to integrate advertising services. Basic antegrations include inline ad, overlay ad, intersitial ad, adhesion ad, and video ad. Resources include advanced integrations and release notes.
Building APIs not only requires discipline; ideally, the process also should be incorporated within the actual development process of the application. With that goal in mind, Zend, a provider of application development tools for building PHP applications, is promoting the adoption of a new open-source Apigility project that provides a standardized way to build and maintain multiple versions of an API.
When Zappos released its API, there was a strange restriction: no mobile applications. While sometimes lawyers write terms that aren't formally enforced, Zappos made it clear on its API mailing list that it was serious. Soon, the restriction will be removed and mobile applications will be allowed without written approval.