The Gigya iOS SDK by Gigya interacts with the API, providing the opportunity to aggregate identity and personal information management to Apple applications. Steps to integrate include setup, a getting started guide, initialization, user login, and instructions to send requests.
MyBantu is an interesting little mashup, available as an iPhone app, an Android app, and a website. Its goal is to make shopping for anything, especially restaurants and movies, easier and more social. It uses Yelp API, Netflix API and various others to make it happen. It's very similar in idea to Siri, the "ultimate mashup" that Apple later gobbled up in the largest mashup acquisition ever.
This is part 4 of our series What is The Green Button API initiative and How It Took OAuth To An Entirely New Level. In this part we explain the structure of Green Buttons’ scope parameters and illustrate the data exchanges and protocol used to implement Green Button’s scope negotiation.